Home / 13,747.20-20,613.90-6,727.74

Finding the Fourth Proportional to 13,747.20, 20,613.90 and 6,727.74

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Solution

The fourth proportional to 13,747.20, 20,613.90 and 6,727.74 is: 10,088.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.20 : 20,613.90 = 6,727.74 : x
  2. Step 2: Convert to fraction form
    13,747.20/20,613.90 = 6,727.74/x
  3. Step 3: Cross multiply
    13,747.20x = 20,613.90 × 6,727.74
  4. Step 4: Simplify right side
    13,747.20x = 138,684,959.59
  5. Step 5: Solve for x
    x = 138,684,959.59/13,747.20
  6. Step 6: Final answer
    x = 10,088.23

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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.