Home / 12,385.38-18,577.38-9,057.04

Finding the Fourth Proportional to 12,385.38, 18,577.38 and 9,057.04

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Solution

The fourth proportional to 12,385.38, 18,577.38 and 9,057.04 is: 13,585.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385.38 : 18,577.38 = 9,057.04 : x
  2. Step 2: Convert to fraction form
    12,385.38/18,577.38 = 9,057.04/x
  3. Step 3: Cross multiply
    12,385.38x = 18,577.38 × 9,057.04
  4. Step 4: Simplify right side
    12,385.38x = 168,256,073.76
  5. Step 5: Solve for x
    x = 168,256,073.76/12,385.38
  6. Step 6: Final answer
    x = 13,585.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.