Home / 13,489.86-20,234.92-4,724.76

Finding the Fourth Proportional to 13,489.86, 20,234.92 and 4,724.76

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Solution

The fourth proportional to 13,489.86, 20,234.92 and 4,724.76 is: 7,087.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.86 : 20,234.92 = 4,724.76 : x
  2. Step 2: Convert to fraction form
    13,489.86/20,234.92 = 4,724.76/x
  3. Step 3: Cross multiply
    13,489.86x = 20,234.92 × 4,724.76
  4. Step 4: Simplify right side
    13,489.86x = 95,605,140.62
  5. Step 5: Solve for x
    x = 95,605,140.62/13,489.86
  6. Step 6: Final answer
    x = 7,087.19

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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.