Home / 10,765.31-16,148.08-2,867.78

Finding the Fourth Proportional to 10,765.31, 16,148.08 and 2,867.78

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Solution

The fourth proportional to 10,765.31, 16,148.08 and 2,867.78 is: 4,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,765.31 : 16,148.08 = 2,867.78 : x
  2. Step 2: Convert to fraction form
    10,765.31/16,148.08 = 2,867.78/x
  3. Step 3: Cross multiply
    10,765.31x = 16,148.08 × 2,867.78
  4. Step 4: Simplify right side
    10,765.31x = 46,309,147.47
  5. Step 5: Solve for x
    x = 46,309,147.47/10,765.31
  6. Step 6: Final answer
    x = 4,301.70

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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.