Home / 12,517.87-18,761.20-10,954.16

Finding the Fourth Proportional to 12,517.87, 18,761.20 and 10,954.16

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Solution

The fourth proportional to 12,517.87, 18,761.20 and 10,954.16 is: 16,417.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,517.87 : 18,761.20 = 10,954.16 : x
  2. Step 2: Convert to fraction form
    12,517.87/18,761.20 = 10,954.16/x
  3. Step 3: Cross multiply
    12,517.87x = 18,761.20 × 10,954.16
  4. Step 4: Simplify right side
    12,517.87x = 205,513,186.59
  5. Step 5: Solve for x
    x = 205,513,186.59/12,517.87
  6. Step 6: Final answer
    x = 16,417.58

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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.