Home / 6,318.86-9,478.28-3,393.14

Finding the Fourth Proportional to 6,318.86, 9,478.28 and 3,393.14

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Solution

The fourth proportional to 6,318.86, 9,478.28 and 3,393.14 is: 5,089.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,318.86 : 9,478.28 = 3,393.14 : x
  2. Step 2: Convert to fraction form
    6,318.86/9,478.28 = 3,393.14/x
  3. Step 3: Cross multiply
    6,318.86x = 9,478.28 × 3,393.14
  4. Step 4: Simplify right side
    6,318.86x = 32,161,092.09
  5. Step 5: Solve for x
    x = 32,161,092.09/6,318.86
  6. Step 6: Final answer
    x = 5,089.70

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.