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Finding the Fourth Proportional to 8,617.25, 12,914.84 and 7,502.12

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Solution

The fourth proportional to 8,617.25, 12,914.84 and 7,502.12 is: 11,243.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.25 : 12,914.84 = 7,502.12 : x
  2. Step 2: Convert to fraction form
    8,617.25/12,914.84 = 7,502.12/x
  3. Step 3: Cross multiply
    8,617.25x = 12,914.84 × 7,502.12
  4. Step 4: Simplify right side
    8,617.25x = 96,888,577.38
  5. Step 5: Solve for x
    x = 96,888,577.38/8,617.25
  6. Step 6: Final answer
    x = 11,243.57

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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.