Home / 8,319.26-11,479.28-4,781.78

Finding the Fourth Proportional to 8,319.26, 11,479.28 and 4,781.78

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Solution

The fourth proportional to 8,319.26, 11,479.28 and 4,781.78 is: 6,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.26 : 11,479.28 = 4,781.78 : x
  2. Step 2: Convert to fraction form
    8,319.26/11,479.28 = 4,781.78/x
  3. Step 3: Cross multiply
    8,319.26x = 11,479.28 × 4,781.78
  4. Step 4: Simplify right side
    8,319.26x = 54,891,391.52
  5. Step 5: Solve for x
    x = 54,891,391.52/8,319.26
  6. Step 6: Final answer
    x = 6,598.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.