Home / 8,340.25-11,507.71-4,982.55

Finding the Fourth Proportional to 8,340.25, 11,507.71 and 4,982.55

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Solution

The fourth proportional to 8,340.25, 11,507.71 and 4,982.55 is: 6,874.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.25 : 11,507.71 = 4,982.55 : x
  2. Step 2: Convert to fraction form
    8,340.25/11,507.71 = 4,982.55/x
  3. Step 3: Cross multiply
    8,340.25x = 11,507.71 × 4,982.55
  4. Step 4: Simplify right side
    8,340.25x = 57,337,658.01
  5. Step 5: Solve for x
    x = 57,337,658.01/8,340.25
  6. Step 6: Final answer
    x = 6,874.82

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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.