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Finding the Fourth Proportional to 8,616.14, 12,865.85 and 6,841.23

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Solution

The fourth proportional to 8,616.14, 12,865.85 and 6,841.23 is: 10,215.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.14 : 12,865.85 = 6,841.23 : x
  2. Step 2: Convert to fraction form
    8,616.14/12,865.85 = 6,841.23/x
  3. Step 3: Cross multiply
    8,616.14x = 12,865.85 × 6,841.23
  4. Step 4: Simplify right side
    8,616.14x = 88,018,267.39
  5. Step 5: Solve for x
    x = 88,018,267.39/8,616.14
  6. Step 6: Final answer
    x = 10,215.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.