Home / 10,778.91-16,167.91-2,987.52

Finding the Fourth Proportional to 10,778.91, 16,167.91 and 2,987.52

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Solution

The fourth proportional to 10,778.91, 16,167.91 and 2,987.52 is: 4,481.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,778.91 : 16,167.91 = 2,987.52 : x
  2. Step 2: Convert to fraction form
    10,778.91/16,167.91 = 2,987.52/x
  3. Step 3: Cross multiply
    10,778.91x = 16,167.91 × 2,987.52
  4. Step 4: Simplify right side
    10,778.91x = 48,301,954.48
  5. Step 5: Solve for x
    x = 48,301,954.48/10,778.91
  6. Step 6: Final answer
    x = 4,481.15

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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.