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Finding the Fourth Proportional to 8,952.87, 13,428.39 and 2,379.72

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Solution

The fourth proportional to 8,952.87, 13,428.39 and 2,379.72 is: 3,569.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,952.87 : 13,428.39 = 2,379.72 : x
  2. Step 2: Convert to fraction form
    8,952.87/13,428.39 = 2,379.72/x
  3. Step 3: Cross multiply
    8,952.87x = 13,428.39 × 2,379.72
  4. Step 4: Simplify right side
    8,952.87x = 31,955,808.25
  5. Step 5: Solve for x
    x = 31,955,808.25/8,952.87
  6. Step 6: Final answer
    x = 3,569.34

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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.