Home / 6,121.13-8,447.15-3,326.63

Finding the Fourth Proportional to 6,121.13, 8,447.15 and 3,326.63

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Solution

The fourth proportional to 6,121.13, 8,447.15 and 3,326.63 is: 4,590.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.13 : 8,447.15 = 3,326.63 : x
  2. Step 2: Convert to fraction form
    6,121.13/8,447.15 = 3,326.63/x
  3. Step 3: Cross multiply
    6,121.13x = 8,447.15 × 3,326.63
  4. Step 4: Simplify right side
    6,121.13x = 28,100,508.69
  5. Step 5: Solve for x
    x = 28,100,508.69/6,121.13
  6. Step 6: Final answer
    x = 4,590.74

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Half scale
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Double scale
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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.