Home / 11,131.69-16,691.28-7,625.65

Finding the Fourth Proportional to 11,131.69, 16,691.28 and 7,625.65

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Solution

The fourth proportional to 11,131.69, 16,691.28 and 7,625.65 is: 11,434.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.69 : 16,691.28 = 7,625.65 : x
  2. Step 2: Convert to fraction form
    11,131.69/16,691.28 = 7,625.65/x
  3. Step 3: Cross multiply
    11,131.69x = 16,691.28 × 7,625.65
  4. Step 4: Simplify right side
    11,131.69x = 127,281,859.33
  5. Step 5: Solve for x
    x = 127,281,859.33/11,131.69
  6. Step 6: Final answer
    x = 11,434.19

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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.