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Finding the Fourth Proportional to 8,775.14, 13,128.48 and 8,711.96

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Solution

The fourth proportional to 8,775.14, 13,128.48 and 8,711.96 is: 13,033.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.14 : 13,128.48 = 8,711.96 : x
  2. Step 2: Convert to fraction form
    8,775.14/13,128.48 = 8,711.96/x
  3. Step 3: Cross multiply
    8,775.14x = 13,128.48 × 8,711.96
  4. Step 4: Simplify right side
    8,775.14x = 114,374,726.98
  5. Step 5: Solve for x
    x = 114,374,726.98/8,775.14
  6. Step 6: Final answer
    x = 13,033.96

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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.