Home / 13,585.59-20,378.14-3,724.86

Finding the Fourth Proportional to 13,585.59, 20,378.14 and 3,724.86

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Solution

The fourth proportional to 13,585.59, 20,378.14 and 3,724.86 is: 5,587.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.59 : 20,378.14 = 3,724.86 : x
  2. Step 2: Convert to fraction form
    13,585.59/20,378.14 = 3,724.86/x
  3. Step 3: Cross multiply
    13,585.59x = 20,378.14 × 3,724.86
  4. Step 4: Simplify right side
    13,585.59x = 75,905,718.56
  5. Step 5: Solve for x
    x = 75,905,718.56/13,585.59
  6. Step 6: Final answer
    x = 5,587.22

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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.