Home / 8,257.60-11,397.00-4,720.78

Finding the Fourth Proportional to 8,257.60, 11,397.00 and 4,720.78

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Solution

The fourth proportional to 8,257.60, 11,397.00 and 4,720.78 is: 6,515.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.60 : 11,397.00 = 4,720.78 : x
  2. Step 2: Convert to fraction form
    8,257.60/11,397.00 = 4,720.78/x
  3. Step 3: Cross multiply
    8,257.60x = 11,397.00 × 4,720.78
  4. Step 4: Simplify right side
    8,257.60x = 53,802,761.61
  5. Step 5: Solve for x
    x = 53,802,761.61/8,257.60
  6. Step 6: Final answer
    x = 6,515.55

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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.