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Finding the Fourth Proportional to 15,975.74, 22,044.48 and 8,901.20

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Solution

The fourth proportional to 15,975.74, 22,044.48 and 8,901.20 is: 12,282.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,975.74 : 22,044.48 = 8,901.20 : x
  2. Step 2: Convert to fraction form
    15,975.74/22,044.48 = 8,901.20/x
  3. Step 3: Cross multiply
    15,975.74x = 22,044.48 × 8,901.20
  4. Step 4: Simplify right side
    15,975.74x = 196,222,325.38
  5. Step 5: Solve for x
    x = 196,222,325.38/15,975.74
  6. Step 6: Final answer
    x = 12,282.52

Related Problems

Find fourth proportional to 7,987.87, 11,022.24 and 4,450.60
Half scale
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Double scale
Find fourth proportional to 15,976.74, 22,045.86 and 8,902.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.