Home / 8,190.12-11,311.74-5,532.96

Finding the Fourth Proportional to 8,190.12, 11,311.74 and 5,532.96

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Solution

The fourth proportional to 8,190.12, 11,311.74 and 5,532.96 is: 7,641.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.12 : 11,311.74 = 5,532.96 : x
  2. Step 2: Convert to fraction form
    8,190.12/11,311.74 = 5,532.96/x
  3. Step 3: Cross multiply
    8,190.12x = 11,311.74 × 5,532.96
  4. Step 4: Simplify right side
    8,190.12x = 62,587,404.95
  5. Step 5: Solve for x
    x = 62,587,404.95/8,190.12
  6. Step 6: Final answer
    x = 7,641.82

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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.