Home / 13,402.26-20,103.12-3,542.13

Finding the Fourth Proportional to 13,402.26, 20,103.12 and 3,542.13

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Solution

The fourth proportional to 13,402.26, 20,103.12 and 3,542.13 is: 5,313.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.26 : 20,103.12 = 3,542.13 : x
  2. Step 2: Convert to fraction form
    13,402.26/20,103.12 = 3,542.13/x
  3. Step 3: Cross multiply
    13,402.26x = 20,103.12 × 3,542.13
  4. Step 4: Simplify right side
    13,402.26x = 71,207,864.45
  5. Step 5: Solve for x
    x = 71,207,864.45/13,402.26
  6. Step 6: Final answer
    x = 5,313.12

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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.