Home / 8,217.75-11,340.51-5,079.42

Finding the Fourth Proportional to 8,217.75, 11,340.51 and 5,079.42

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Solution

The fourth proportional to 8,217.75, 11,340.51 and 5,079.42 is: 7,009.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.75 : 11,340.51 = 5,079.42 : x
  2. Step 2: Convert to fraction form
    8,217.75/11,340.51 = 5,079.42/x
  3. Step 3: Cross multiply
    8,217.75x = 11,340.51 × 5,079.42
  4. Step 4: Simplify right side
    8,217.75x = 57,603,213.30
  5. Step 5: Solve for x
    x = 57,603,213.30/8,217.75
  6. Step 6: Final answer
    x = 7,009.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.