Home / 13,585.71-20,378.09-3,724.83

Finding the Fourth Proportional to 13,585.71, 20,378.09 and 3,724.83

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Solution

The fourth proportional to 13,585.71, 20,378.09 and 3,724.83 is: 5,587.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.71 : 20,378.09 = 3,724.83 : x
  2. Step 2: Convert to fraction form
    13,585.71/20,378.09 = 3,724.83/x
  3. Step 3: Cross multiply
    13,585.71x = 20,378.09 × 3,724.83
  4. Step 4: Simplify right side
    13,585.71x = 75,904,902.35
  5. Step 5: Solve for x
    x = 75,904,902.35/13,585.71
  6. Step 6: Final answer
    x = 5,587.11

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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.