Home / 8,940.12-12,337.92-5,163.98

Finding the Fourth Proportional to 8,940.12, 12,337.92 and 5,163.98

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Solution

The fourth proportional to 8,940.12, 12,337.92 and 5,163.98 is: 7,126.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.12 : 12,337.92 = 5,163.98 : x
  2. Step 2: Convert to fraction form
    8,940.12/12,337.92 = 5,163.98/x
  3. Step 3: Cross multiply
    8,940.12x = 12,337.92 × 5,163.98
  4. Step 4: Simplify right side
    8,940.12x = 63,712,772.12
  5. Step 5: Solve for x
    x = 63,712,772.12/8,940.12
  6. Step 6: Final answer
    x = 7,126.61

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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.