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Finding the Fourth Proportional to 6,618.11, 9,913.49 and 5,304.08

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Solution

The fourth proportional to 6,618.11, 9,913.49 and 5,304.08 is: 7,945.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.11 : 9,913.49 = 5,304.08 : x
  2. Step 2: Convert to fraction form
    6,618.11/9,913.49 = 5,304.08/x
  3. Step 3: Cross multiply
    6,618.11x = 9,913.49 × 5,304.08
  4. Step 4: Simplify right side
    6,618.11x = 52,581,962.19
  5. Step 5: Solve for x
    x = 52,581,962.19/6,618.11
  6. Step 6: Final answer
    x = 7,945.17

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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.