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Finding the Fourth Proportional to 8,540.66, 11,791.50 and 6,547.52

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Solution

The fourth proportional to 8,540.66, 11,791.50 and 6,547.52 is: 9,039.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.66 : 11,791.50 = 6,547.52 : x
  2. Step 2: Convert to fraction form
    8,540.66/11,791.50 = 6,547.52/x
  3. Step 3: Cross multiply
    8,540.66x = 11,791.50 × 6,547.52
  4. Step 4: Simplify right side
    8,540.66x = 77,205,082.08
  5. Step 5: Solve for x
    x = 77,205,082.08/8,540.66
  6. Step 6: Final answer
    x = 9,039.71

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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.