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Finding the Fourth Proportional to 9,371.99, 14,053.35 and 3,129.86

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Solution

The fourth proportional to 9,371.99, 14,053.35 and 3,129.86 is: 4,693.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,371.99 : 14,053.35 = 3,129.86 : x
  2. Step 2: Convert to fraction form
    9,371.99/14,053.35 = 3,129.86/x
  3. Step 3: Cross multiply
    9,371.99x = 14,053.35 × 3,129.86
  4. Step 4: Simplify right side
    9,371.99x = 43,985,064.90
  5. Step 5: Solve for x
    x = 43,985,064.90/9,371.99
  6. Step 6: Final answer
    x = 4,693.25

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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.