Home / 13,932.20-20,898.18-3,543.92

Finding the Fourth Proportional to 13,932.20, 20,898.18 and 3,543.92

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Solution

The fourth proportional to 13,932.20, 20,898.18 and 3,543.92 is: 5,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.20 : 20,898.18 = 3,543.92 : x
  2. Step 2: Convert to fraction form
    13,932.20/20,898.18 = 3,543.92/x
  3. Step 3: Cross multiply
    13,932.20x = 20,898.18 × 3,543.92
  4. Step 4: Simplify right side
    13,932.20x = 74,061,478.07
  5. Step 5: Solve for x
    x = 74,061,478.07/13,932.20
  6. Step 6: Final answer
    x = 5,315.85

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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.