Home / 11,440.33-17,129.28-8,658.59

Finding the Fourth Proportional to 11,440.33, 17,129.28 and 8,658.59

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Solution

The fourth proportional to 11,440.33, 17,129.28 and 8,658.59 is: 12,964.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440.33 : 17,129.28 = 8,658.59 : x
  2. Step 2: Convert to fraction form
    11,440.33/17,129.28 = 8,658.59/x
  3. Step 3: Cross multiply
    11,440.33x = 17,129.28 × 8,658.59
  4. Step 4: Simplify right side
    11,440.33x = 148,315,326.87
  5. Step 5: Solve for x
    x = 148,315,326.87/11,440.33
  6. Step 6: Final answer
    x = 12,964.26

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1.5x scale

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.