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Finding the Fourth Proportional to 8,760.63, 13,141.08 and 2,917.25

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Solution

The fourth proportional to 8,760.63, 13,141.08 and 2,917.25 is: 4,375.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.63 : 13,141.08 = 2,917.25 : x
  2. Step 2: Convert to fraction form
    8,760.63/13,141.08 = 2,917.25/x
  3. Step 3: Cross multiply
    8,760.63x = 13,141.08 × 2,917.25
  4. Step 4: Simplify right side
    8,760.63x = 38,335,749.92
  5. Step 5: Solve for x
    x = 38,335,749.92/8,760.63
  6. Step 6: Final answer
    x = 4,375.91

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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.