Home / 8,291.14-12,440.01-3,908.90

Finding the Fourth Proportional to 8,291.14, 12,440.01 and 3,908.90

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Solution

The fourth proportional to 8,291.14, 12,440.01 and 3,908.90 is: 5,864.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.14 : 12,440.01 = 3,908.90 : x
  2. Step 2: Convert to fraction form
    8,291.14/12,440.01 = 3,908.90/x
  3. Step 3: Cross multiply
    8,291.14x = 12,440.01 × 3,908.90
  4. Step 4: Simplify right side
    8,291.14x = 48,626,755.09
  5. Step 5: Solve for x
    x = 48,626,755.09/8,291.14
  6. Step 6: Final answer
    x = 5,864.91

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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.