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Finding the Fourth Proportional to 6,616.11, 9,876.82 and 6,385.26

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Solution

The fourth proportional to 6,616.11, 9,876.82 and 6,385.26 is: 9,532.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.11 : 9,876.82 = 6,385.26 : x
  2. Step 2: Convert to fraction form
    6,616.11/9,876.82 = 6,385.26/x
  3. Step 3: Cross multiply
    6,616.11x = 9,876.82 × 6,385.26
  4. Step 4: Simplify right side
    6,616.11x = 63,066,063.67
  5. Step 5: Solve for x
    x = 63,066,063.67/6,616.11
  6. Step 6: Final answer
    x = 9,532.20

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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.