Home / 18,743.76-28,119.68-5,597.20

Finding the Fourth Proportional to 18,743.76, 28,119.68 and 5,597.20

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Solution

The fourth proportional to 18,743.76, 28,119.68 and 5,597.20 is: 8,397.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.76 : 28,119.68 = 5,597.20 : x
  2. Step 2: Convert to fraction form
    18,743.76/28,119.68 = 5,597.20/x
  3. Step 3: Cross multiply
    18,743.76x = 28,119.68 × 5,597.20
  4. Step 4: Simplify right side
    18,743.76x = 157,391,472.90
  5. Step 5: Solve for x
    x = 157,391,472.90/18,743.76
  6. Step 6: Final answer
    x = 8,397.01

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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.