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Finding the Fourth Proportional to 9,246.22, 12,759.86 and 8,539.88

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Solution

The fourth proportional to 9,246.22, 12,759.86 and 8,539.88 is: 11,785.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,246.22 : 12,759.86 = 8,539.88 : x
  2. Step 2: Convert to fraction form
    9,246.22/12,759.86 = 8,539.88/x
  3. Step 3: Cross multiply
    9,246.22x = 12,759.86 × 8,539.88
  4. Step 4: Simplify right side
    9,246.22x = 108,967,726.47
  5. Step 5: Solve for x
    x = 108,967,726.47/9,246.22
  6. Step 6: Final answer
    x = 11,785.11

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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.