Home / 18,743.20-28,115.12-5,595.72

Finding the Fourth Proportional to 18,743.20, 28,115.12 and 5,595.72

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Solution

The fourth proportional to 18,743.20, 28,115.12 and 5,595.72 is: 8,393.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.20 : 28,115.12 = 5,595.72 : x
  2. Step 2: Convert to fraction form
    18,743.20/28,115.12 = 5,595.72/x
  3. Step 3: Cross multiply
    18,743.20x = 28,115.12 × 5,595.72
  4. Step 4: Simplify right side
    18,743.20x = 157,324,339.29
  5. Step 5: Solve for x
    x = 157,324,339.29/18,743.20
  6. Step 6: Final answer
    x = 8,393.68

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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.