Home / 8,218.36-12,324.30-3,538.72

Finding the Fourth Proportional to 8,218.36, 12,324.30 and 3,538.72

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Solution

The fourth proportional to 8,218.36, 12,324.30 and 3,538.72 is: 5,306.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.36 : 12,324.30 = 3,538.72 : x
  2. Step 2: Convert to fraction form
    8,218.36/12,324.30 = 3,538.72/x
  3. Step 3: Cross multiply
    8,218.36x = 12,324.30 × 3,538.72
  4. Step 4: Simplify right side
    8,218.36x = 43,612,246.90
  5. Step 5: Solve for x
    x = 43,612,246.90/8,218.36
  6. Step 6: Final answer
    x = 5,306.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.