Home / 13,589.46-20,384.19-6,660.18

Finding the Fourth Proportional to 13,589.46, 20,384.19 and 6,660.18

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Solution

The fourth proportional to 13,589.46, 20,384.19 and 6,660.18 is: 9,990.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.46 : 20,384.19 = 6,660.18 : x
  2. Step 2: Convert to fraction form
    13,589.46/20,384.19 = 6,660.18/x
  3. Step 3: Cross multiply
    13,589.46x = 20,384.19 × 6,660.18
  4. Step 4: Simplify right side
    13,589.46x = 135,762,374.55
  5. Step 5: Solve for x
    x = 135,762,374.55/13,589.46
  6. Step 6: Final answer
    x = 9,990.27

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Similar ratio
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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.