Home / 14,614.73-20,172.89-8,331.29

Finding the Fourth Proportional to 14,614.73, 20,172.89 and 8,331.29

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Solution

The fourth proportional to 14,614.73, 20,172.89 and 8,331.29 is: 11,499.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,614.73 : 20,172.89 = 8,331.29 : x
  2. Step 2: Convert to fraction form
    14,614.73/20,172.89 = 8,331.29/x
  3. Step 3: Cross multiply
    14,614.73x = 20,172.89 × 8,331.29
  4. Step 4: Simplify right side
    14,614.73x = 168,066,155.07
  5. Step 5: Solve for x
    x = 168,066,155.07/14,614.73
  6. Step 6: Final answer
    x = 11,499.78

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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.