Home / 8,006.40-12,001.92-4,311.12

Finding the Fourth Proportional to 8,006.40, 12,001.92 and 4,311.12

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Solution

The fourth proportional to 8,006.40, 12,001.92 and 4,311.12 is: 6,462.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,006.40 : 12,001.92 = 4,311.12 : x
  2. Step 2: Convert to fraction form
    8,006.40/12,001.92 = 4,311.12/x
  3. Step 3: Cross multiply
    8,006.40x = 12,001.92 × 4,311.12
  4. Step 4: Simplify right side
    8,006.40x = 51,741,717.35
  5. Step 5: Solve for x
    x = 51,741,717.35/8,006.40
  6. Step 6: Final answer
    x = 6,462.54

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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.