Home / 8,749.72-13,123.92-2,175.90

Finding the Fourth Proportional to 8,749.72, 13,123.92 and 2,175.90

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Solution

The fourth proportional to 8,749.72, 13,123.92 and 2,175.90 is: 3,263.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.72 : 13,123.92 = 2,175.90 : x
  2. Step 2: Convert to fraction form
    8,749.72/13,123.92 = 2,175.90/x
  3. Step 3: Cross multiply
    8,749.72x = 13,123.92 × 2,175.90
  4. Step 4: Simplify right side
    8,749.72x = 28,556,296.47
  5. Step 5: Solve for x
    x = 28,556,296.47/8,749.72
  6. Step 6: Final answer
    x = 3,263.68

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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.