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Finding the Fourth Proportional to 8,775.29, 13,158.81 and 2,927.79

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Solution

The fourth proportional to 8,775.29, 13,158.81 and 2,927.79 is: 4,390.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.29 : 13,158.81 = 2,927.79 : x
  2. Step 2: Convert to fraction form
    8,775.29/13,158.81 = 2,927.79/x
  3. Step 3: Cross multiply
    8,775.29x = 13,158.81 × 2,927.79
  4. Step 4: Simplify right side
    8,775.29x = 38,526,232.33
  5. Step 5: Solve for x
    x = 38,526,232.33/8,775.29
  6. Step 6: Final answer
    x = 4,390.31

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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.