Home / 18,747.76-28,125.68-5,601.20

Finding the Fourth Proportional to 18,747.76, 28,125.68 and 5,601.20

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Solution

The fourth proportional to 18,747.76, 28,125.68 and 5,601.20 is: 8,403.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.76 : 28,125.68 = 5,601.20 : x
  2. Step 2: Convert to fraction form
    18,747.76/28,125.68 = 5,601.20/x
  3. Step 3: Cross multiply
    18,747.76x = 28,125.68 × 5,601.20
  4. Step 4: Simplify right side
    18,747.76x = 157,537,558.82
  5. Step 5: Solve for x
    x = 157,537,558.82/18,747.76
  6. Step 6: Final answer
    x = 8,403.01

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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.