Home / 8,262.32-11,400.72-5,280.80

Finding the Fourth Proportional to 8,262.32, 11,400.72 and 5,280.80

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Solution

The fourth proportional to 8,262.32, 11,400.72 and 5,280.80 is: 7,286.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,262.32 : 11,400.72 = 5,280.80 : x
  2. Step 2: Convert to fraction form
    8,262.32/11,400.72 = 5,280.80/x
  3. Step 3: Cross multiply
    8,262.32x = 11,400.72 × 5,280.80
  4. Step 4: Simplify right side
    8,262.32x = 60,204,922.18
  5. Step 5: Solve for x
    x = 60,204,922.18/8,262.32
  6. Step 6: Final answer
    x = 7,286.68

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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.