Home / 8,126.04-12,189.06-2,931.92

Finding the Fourth Proportional to 8,126.04, 12,189.06 and 2,931.92

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Solution

The fourth proportional to 8,126.04, 12,189.06 and 2,931.92 is: 4,397.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.04 : 12,189.06 = 2,931.92 : x
  2. Step 2: Convert to fraction form
    8,126.04/12,189.06 = 2,931.92/x
  3. Step 3: Cross multiply
    8,126.04x = 12,189.06 × 2,931.92
  4. Step 4: Simplify right side
    8,126.04x = 35,737,287.85
  5. Step 5: Solve for x
    x = 35,737,287.85/8,126.04
  6. Step 6: Final answer
    x = 4,397.87

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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.