Home / 8,765.06-13,139.76-3,217.11

Finding the Fourth Proportional to 8,765.06, 13,139.76 and 3,217.11

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Solution

The fourth proportional to 8,765.06, 13,139.76 and 3,217.11 is: 4,822.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.06 : 13,139.76 = 3,217.11 : x
  2. Step 2: Convert to fraction form
    8,765.06/13,139.76 = 3,217.11/x
  3. Step 3: Cross multiply
    8,765.06x = 13,139.76 × 3,217.11
  4. Step 4: Simplify right side
    8,765.06x = 42,272,053.29
  5. Step 5: Solve for x
    x = 42,272,053.29/8,765.06
  6. Step 6: Final answer
    x = 4,822.79

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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.