Home / 15,131.80-22,690.41-5,270.86

Finding the Fourth Proportional to 15,131.80, 22,690.41 and 5,270.86

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Solution

The fourth proportional to 15,131.80, 22,690.41 and 5,270.86 is: 7,903.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,131.80 : 22,690.41 = 5,270.86 : x
  2. Step 2: Convert to fraction form
    15,131.80/22,690.41 = 5,270.86/x
  3. Step 3: Cross multiply
    15,131.80x = 22,690.41 × 5,270.86
  4. Step 4: Simplify right side
    15,131.80x = 119,597,974.45
  5. Step 5: Solve for x
    x = 119,597,974.45/15,131.80
  6. Step 6: Final answer
    x = 7,903.75

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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.