Home / 15,177.10-22,761.60-5,315.35

Finding the Fourth Proportional to 15,177.10, 22,761.60 and 5,315.35

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Solution

The fourth proportional to 15,177.10, 22,761.60 and 5,315.35 is: 7,971.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,177.10 : 22,761.60 = 5,315.35 : x
  2. Step 2: Convert to fraction form
    15,177.10/22,761.60 = 5,315.35/x
  3. Step 3: Cross multiply
    15,177.10x = 22,761.60 × 5,315.35
  4. Step 4: Simplify right side
    15,177.10x = 120,985,870.56
  5. Step 5: Solve for x
    x = 120,985,870.56/15,177.10
  6. Step 6: Final answer
    x = 7,971.61

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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.