Home / 11,802.30-16,275.51-8,439.18

Finding the Fourth Proportional to 11,802.30, 16,275.51 and 8,439.18

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Solution

The fourth proportional to 11,802.30, 16,275.51 and 8,439.18 is: 11,637.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,802.30 : 16,275.51 = 8,439.18 : x
  2. Step 2: Convert to fraction form
    11,802.30/16,275.51 = 8,439.18/x
  3. Step 3: Cross multiply
    11,802.30x = 16,275.51 × 8,439.18
  4. Step 4: Simplify right side
    11,802.30x = 137,351,958.48
  5. Step 5: Solve for x
    x = 137,351,958.48/11,802.30
  6. Step 6: Final answer
    x = 11,637.73

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Half scale
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Double scale
Find fourth proportional to 11,803.30, 16,276.89 and 8,440.18
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.