Home / 13,528.18-18,634.17-9,542.29

Finding the Fourth Proportional to 13,528.18, 18,634.17 and 9,542.29

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Solution

The fourth proportional to 13,528.18, 18,634.17 and 9,542.29 is: 13,143.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.18 : 18,634.17 = 9,542.29 : x
  2. Step 2: Convert to fraction form
    13,528.18/18,634.17 = 9,542.29/x
  3. Step 3: Cross multiply
    13,528.18x = 18,634.17 × 9,542.29
  4. Step 4: Simplify right side
    13,528.18x = 177,812,654.05
  5. Step 5: Solve for x
    x = 177,812,654.05/13,528.18
  6. Step 6: Final answer
    x = 13,143.87

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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.