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Finding the Fourth Proportional to 8,762.51, 13,141.03 and 2,917.75

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Solution

The fourth proportional to 8,762.51, 13,141.03 and 2,917.75 is: 4,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.51 : 13,141.03 = 2,917.75 : x
  2. Step 2: Convert to fraction form
    8,762.51/13,141.03 = 2,917.75/x
  3. Step 3: Cross multiply
    8,762.51x = 13,141.03 × 2,917.75
  4. Step 4: Simplify right side
    8,762.51x = 38,342,240.28
  5. Step 5: Solve for x
    x = 38,342,240.28/8,762.51
  6. Step 6: Final answer
    x = 4,375.71

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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.