Home / 15,147.50-22,721.34-5,286.74

Finding the Fourth Proportional to 15,147.50, 22,721.34 and 5,286.74

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Solution

The fourth proportional to 15,147.50, 22,721.34 and 5,286.74 is: 7,930.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,147.50 : 22,721.34 = 5,286.74 : x
  2. Step 2: Convert to fraction form
    15,147.50/22,721.34 = 5,286.74/x
  3. Step 3: Cross multiply
    15,147.50x = 22,721.34 × 5,286.74
  4. Step 4: Simplify right side
    15,147.50x = 120,121,817.03
  5. Step 5: Solve for x
    x = 120,121,817.03/15,147.50
  6. Step 6: Final answer
    x = 7,930.14

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1.5x scale

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.