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Finding the Fourth Proportional to 9,987.71, 14,976.90 and 2,965.14

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Solution

The fourth proportional to 9,987.71, 14,976.90 and 2,965.14 is: 4,446.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.71 : 14,976.90 = 2,965.14 : x
  2. Step 2: Convert to fraction form
    9,987.71/14,976.90 = 2,965.14/x
  3. Step 3: Cross multiply
    9,987.71x = 14,976.90 × 2,965.14
  4. Step 4: Simplify right side
    9,987.71x = 44,408,605.27
  5. Step 5: Solve for x
    x = 44,408,605.27/9,987.71
  6. Step 6: Final answer
    x = 4,446.33

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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.