Home / 10,127.92-13,972.20-6,147.64

Finding the Fourth Proportional to 10,127.92, 13,972.20 and 6,147.64

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Solution

The fourth proportional to 10,127.92, 13,972.20 and 6,147.64 is: 8,481.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.92 : 13,972.20 = 6,147.64 : x
  2. Step 2: Convert to fraction form
    10,127.92/13,972.20 = 6,147.64/x
  3. Step 3: Cross multiply
    10,127.92x = 13,972.20 × 6,147.64
  4. Step 4: Simplify right side
    10,127.92x = 85,896,055.61
  5. Step 5: Solve for x
    x = 85,896,055.61/10,127.92
  6. Step 6: Final answer
    x = 8,481.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.