Home / 8,066.52-12,099.78-2,872.40

Finding the Fourth Proportional to 8,066.52, 12,099.78 and 2,872.40

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Solution

The fourth proportional to 8,066.52, 12,099.78 and 2,872.40 is: 4,308.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,066.52 : 12,099.78 = 2,872.40 : x
  2. Step 2: Convert to fraction form
    8,066.52/12,099.78 = 2,872.40/x
  3. Step 3: Cross multiply
    8,066.52x = 12,099.78 × 2,872.40
  4. Step 4: Simplify right side
    8,066.52x = 34,755,347.57
  5. Step 5: Solve for x
    x = 34,755,347.57/8,066.52
  6. Step 6: Final answer
    x = 4,308.59

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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.