Home / 8,279.43-12,421.19-6,801.15

Finding the Fourth Proportional to 8,279.43, 12,421.19 and 6,801.15

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Solution

The fourth proportional to 8,279.43, 12,421.19 and 6,801.15 is: 10,203.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.43 : 12,421.19 = 6,801.15 : x
  2. Step 2: Convert to fraction form
    8,279.43/12,421.19 = 6,801.15/x
  3. Step 3: Cross multiply
    8,279.43x = 12,421.19 × 6,801.15
  4. Step 4: Simplify right side
    8,279.43x = 84,478,439.95
  5. Step 5: Solve for x
    x = 84,478,439.95/8,279.43
  6. Step 6: Final answer
    x = 10,203.42

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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.