Home / 13,569.12-20,375.28-9,197.28

Finding the Fourth Proportional to 13,569.12, 20,375.28 and 9,197.28

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Solution

The fourth proportional to 13,569.12, 20,375.28 and 9,197.28 is: 13,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.12 : 20,375.28 = 9,197.28 : x
  2. Step 2: Convert to fraction form
    13,569.12/20,375.28 = 9,197.28/x
  3. Step 3: Cross multiply
    13,569.12x = 20,375.28 × 9,197.28
  4. Step 4: Simplify right side
    13,569.12x = 187,397,155.24
  5. Step 5: Solve for x
    x = 187,397,155.24/13,569.12
  6. Step 6: Final answer
    x = 13,810.56

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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.