Home / 15,123.60-20,862.12-9,524.88

Finding the Fourth Proportional to 15,123.60, 20,862.12 and 9,524.88

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Solution

The fourth proportional to 15,123.60, 20,862.12 and 9,524.88 is: 13,139.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,123.60 : 20,862.12 = 9,524.88 : x
  2. Step 2: Convert to fraction form
    15,123.60/20,862.12 = 9,524.88/x
  3. Step 3: Cross multiply
    15,123.60x = 20,862.12 × 9,524.88
  4. Step 4: Simplify right side
    15,123.60x = 198,709,189.55
  5. Step 5: Solve for x
    x = 198,709,189.55/15,123.60
  6. Step 6: Final answer
    x = 13,139.01

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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.