Home / 15,156.92-22,720.50-7,257.20

Finding the Fourth Proportional to 15,156.92, 22,720.50 and 7,257.20

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Solution

The fourth proportional to 15,156.92, 22,720.50 and 7,257.20 is: 10,878.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,156.92 : 22,720.50 = 7,257.20 : x
  2. Step 2: Convert to fraction form
    15,156.92/22,720.50 = 7,257.20/x
  3. Step 3: Cross multiply
    15,156.92x = 22,720.50 × 7,257.20
  4. Step 4: Simplify right side
    15,156.92x = 164,887,212.60
  5. Step 5: Solve for x
    x = 164,887,212.60/15,156.92
  6. Step 6: Final answer
    x = 10,878.68

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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.