Home / 8,358,724.11-12,538,086.16-6,686,456.43

Finding the Fourth Proportional to 8,358,724.11, 12,538,086.16 and 6,686,456.43

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Solution

The fourth proportional to 8,358,724.11, 12,538,086.16 and 6,686,456.43 is: 10,029,684.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358,724.11 : 12,538,086.16 = 6,686,456.43 : x
  2. Step 2: Convert to fraction form
    8,358,724.11/12,538,086.16 = 6,686,456.43/x
  3. Step 3: Cross multiply
    8,358,724.11x = 12,538,086.16 × 6,686,456.43
  4. Step 4: Simplify right side
    8,358,724.11x = 83,835,366,745,019.44
  5. Step 5: Solve for x
    x = 83,835,366,745,019.44/8,358,724.11
  6. Step 6: Final answer
    x = 10,029,684.64

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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.