Home / 18,127.28-25,004.12-13,098.89

Finding the Fourth Proportional to 18,127.28, 25,004.12 and 13,098.89

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Solution

The fourth proportional to 18,127.28, 25,004.12 and 13,098.89 is: 18,068.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.28 : 25,004.12 = 13,098.89 : x
  2. Step 2: Convert to fraction form
    18,127.28/25,004.12 = 13,098.89/x
  3. Step 3: Cross multiply
    18,127.28x = 25,004.12 × 13,098.89
  4. Step 4: Simplify right side
    18,127.28x = 327,526,026.91
  5. Step 5: Solve for x
    x = 327,526,026.91/18,127.28
  6. Step 6: Final answer
    x = 18,068.13

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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.