Home / 8,422.24-12,616.94-5,127.16

Finding the Fourth Proportional to 8,422.24, 12,616.94 and 5,127.16

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Solution

The fourth proportional to 8,422.24, 12,616.94 and 5,127.16 is: 7,680.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.24 : 12,616.94 = 5,127.16 : x
  2. Step 2: Convert to fraction form
    8,422.24/12,616.94 = 5,127.16/x
  3. Step 3: Cross multiply
    8,422.24x = 12,616.94 × 5,127.16
  4. Step 4: Simplify right side
    8,422.24x = 64,689,070.09
  5. Step 5: Solve for x
    x = 64,689,070.09/8,422.24
  6. Step 6: Final answer
    x = 7,680.74

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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.