Home / 7,121.16-10,663.08-5,029.86

Finding the Fourth Proportional to 7,121.16, 10,663.08 and 5,029.86

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Solution

The fourth proportional to 7,121.16, 10,663.08 and 5,029.86 is: 7,531.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.16 : 10,663.08 = 5,029.86 : x
  2. Step 2: Convert to fraction form
    7,121.16/10,663.08 = 5,029.86/x
  3. Step 3: Cross multiply
    7,121.16x = 10,663.08 × 5,029.86
  4. Step 4: Simplify right side
    7,121.16x = 53,633,799.57
  5. Step 5: Solve for x
    x = 53,633,799.57/7,121.16
  6. Step 6: Final answer
    x = 7,531.61

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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.