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Finding the Fourth Proportional to 8,449.66, 12,657.48 and 7,076.71

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Solution

The fourth proportional to 8,449.66, 12,657.48 and 7,076.71 is: 10,600.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.66 : 12,657.48 = 7,076.71 : x
  2. Step 2: Convert to fraction form
    8,449.66/12,657.48 = 7,076.71/x
  3. Step 3: Cross multiply
    8,449.66x = 12,657.48 × 7,076.71
  4. Step 4: Simplify right side
    8,449.66x = 89,573,315.29
  5. Step 5: Solve for x
    x = 89,573,315.29/8,449.66
  6. Step 6: Final answer
    x = 10,600.82

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1.5x scale

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.