Home / 8,218.82-11,339.20-4,679.53

Finding the Fourth Proportional to 8,218.82, 11,339.20 and 4,679.53

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Solution

The fourth proportional to 8,218.82, 11,339.20 and 4,679.53 is: 6,456.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.82 : 11,339.20 = 4,679.53 : x
  2. Step 2: Convert to fraction form
    8,218.82/11,339.20 = 4,679.53/x
  3. Step 3: Cross multiply
    8,218.82x = 11,339.20 × 4,679.53
  4. Step 4: Simplify right side
    8,218.82x = 53,062,126.58
  5. Step 5: Solve for x
    x = 53,062,126.58/8,218.82
  6. Step 6: Final answer
    x = 6,456.17

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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.