Home / 12,517.43-18,776.12-4,197.47

Finding the Fourth Proportional to 12,517.43, 18,776.12 and 4,197.47

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Solution

The fourth proportional to 12,517.43, 18,776.12 and 4,197.47 is: 6,296.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,517.43 : 18,776.12 = 4,197.47 : x
  2. Step 2: Convert to fraction form
    12,517.43/18,776.12 = 4,197.47/x
  3. Step 3: Cross multiply
    12,517.43x = 18,776.12 × 4,197.47
  4. Step 4: Simplify right side
    12,517.43x = 78,812,106.54
  5. Step 5: Solve for x
    x = 78,812,106.54/12,517.43
  6. Step 6: Final answer
    x = 6,296.19

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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.