Home / 8,433.20-11,648.15-6,318.19

Finding the Fourth Proportional to 8,433.20, 11,648.15 and 6,318.19

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Solution

The fourth proportional to 8,433.20, 11,648.15 and 6,318.19 is: 8,726.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,433.20 : 11,648.15 = 6,318.19 : x
  2. Step 2: Convert to fraction form
    8,433.20/11,648.15 = 6,318.19/x
  3. Step 3: Cross multiply
    8,433.20x = 11,648.15 × 6,318.19
  4. Step 4: Simplify right side
    8,433.20x = 73,595,224.85
  5. Step 5: Solve for x
    x = 73,595,224.85/8,433.20
  6. Step 6: Final answer
    x = 8,726.84

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Half scale
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Double scale
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Similar ratio
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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.