Home / 15,990.40-22,064.52-9,276.58

Finding the Fourth Proportional to 15,990.40, 22,064.52 and 9,276.58

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Solution

The fourth proportional to 15,990.40, 22,064.52 and 9,276.58 is: 12,800.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.40 : 22,064.52 = 9,276.58 : x
  2. Step 2: Convert to fraction form
    15,990.40/22,064.52 = 9,276.58/x
  3. Step 3: Cross multiply
    15,990.40x = 22,064.52 × 9,276.58
  4. Step 4: Simplify right side
    15,990.40x = 204,683,284.94
  5. Step 5: Solve for x
    x = 204,683,284.94/15,990.40
  6. Step 6: Final answer
    x = 12,800.39

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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.