Home / 11,508.31-17,166.58-11,317.78

Finding the Fourth Proportional to 11,508.31, 17,166.58 and 11,317.78

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Solution

The fourth proportional to 11,508.31, 17,166.58 and 11,317.78 is: 16,882.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,508.31 : 17,166.58 = 11,317.78 : x
  2. Step 2: Convert to fraction form
    11,508.31/17,166.58 = 11,317.78/x
  3. Step 3: Cross multiply
    11,508.31x = 17,166.58 × 11,317.78
  4. Step 4: Simplify right side
    11,508.31x = 194,287,575.79
  5. Step 5: Solve for x
    x = 194,287,575.79/11,508.31
  6. Step 6: Final answer
    x = 16,882.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.