Home / 13,724.20-20,565.26-7,152.52

Finding the Fourth Proportional to 13,724.20, 20,565.26 and 7,152.52

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Solution

The fourth proportional to 13,724.20, 20,565.26 and 7,152.52 is: 10,717.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,724.20 : 20,565.26 = 7,152.52 : x
  2. Step 2: Convert to fraction form
    13,724.20/20,565.26 = 7,152.52/x
  3. Step 3: Cross multiply
    13,724.20x = 20,565.26 × 7,152.52
  4. Step 4: Simplify right side
    13,724.20x = 147,093,433.46
  5. Step 5: Solve for x
    x = 147,093,433.46/13,724.20
  6. Step 6: Final answer
    x = 10,717.81

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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.