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Finding the Fourth Proportional to 8,772.76, 13,159.25 and 2,929.37

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Solution

The fourth proportional to 8,772.76, 13,159.25 and 2,929.37 is: 4,394.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.76 : 13,159.25 = 2,929.37 : x
  2. Step 2: Convert to fraction form
    8,772.76/13,159.25 = 2,929.37/x
  3. Step 3: Cross multiply
    8,772.76x = 13,159.25 × 2,929.37
  4. Step 4: Simplify right side
    8,772.76x = 38,548,312.17
  5. Step 5: Solve for x
    x = 38,548,312.17/8,772.76
  6. Step 6: Final answer
    x = 4,394.09

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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.