Home / 15,039.33-20,755.02-8,666.92

Finding the Fourth Proportional to 15,039.33, 20,755.02 and 8,666.92

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Solution

The fourth proportional to 15,039.33, 20,755.02 and 8,666.92 is: 11,960.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,039.33 : 20,755.02 = 8,666.92 : x
  2. Step 2: Convert to fraction form
    15,039.33/20,755.02 = 8,666.92/x
  3. Step 3: Cross multiply
    15,039.33x = 20,755.02 × 8,666.92
  4. Step 4: Simplify right side
    15,039.33x = 179,882,097.94
  5. Step 5: Solve for x
    x = 179,882,097.94/15,039.33
  6. Step 6: Final answer
    x = 11,960.78

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Double scale
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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.