Home / 11,311.24-17,043.13-9,379.72

Finding the Fourth Proportional to 11,311.24, 17,043.13 and 9,379.72

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Solution

The fourth proportional to 11,311.24, 17,043.13 and 9,379.72 is: 14,132.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.24 : 17,043.13 = 9,379.72 : x
  2. Step 2: Convert to fraction form
    11,311.24/17,043.13 = 9,379.72/x
  3. Step 3: Cross multiply
    11,311.24x = 17,043.13 × 9,379.72
  4. Step 4: Simplify right side
    11,311.24x = 159,859,787.32
  5. Step 5: Solve for x
    x = 159,859,787.32/11,311.24
  6. Step 6: Final answer
    x = 14,132.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.