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Finding the Fourth Proportional to 8,881.87, 13,308.10 and 7,966.15

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Solution

The fourth proportional to 8,881.87, 13,308.10 and 7,966.15 is: 11,936.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.87 : 13,308.10 = 7,966.15 : x
  2. Step 2: Convert to fraction form
    8,881.87/13,308.10 = 7,966.15/x
  3. Step 3: Cross multiply
    8,881.87x = 13,308.10 × 7,966.15
  4. Step 4: Simplify right side
    8,881.87x = 106,014,320.82
  5. Step 5: Solve for x
    x = 106,014,320.82/8,881.87
  6. Step 6: Final answer
    x = 11,936.04

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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.