Home / 11,249.29-16,838.55-7,718.65

Finding the Fourth Proportional to 11,249.29, 16,838.55 and 7,718.65

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Solution

The fourth proportional to 11,249.29, 16,838.55 and 7,718.65 is: 11,553.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,249.29 : 16,838.55 = 7,718.65 : x
  2. Step 2: Convert to fraction form
    11,249.29/16,838.55 = 7,718.65/x
  3. Step 3: Cross multiply
    11,249.29x = 16,838.55 × 7,718.65
  4. Step 4: Simplify right side
    11,249.29x = 129,970,873.96
  5. Step 5: Solve for x
    x = 129,970,873.96/11,249.29
  6. Step 6: Final answer
    x = 11,553.70

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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.