Home / 8,149.14-12,215.16-3,769.47

Finding the Fourth Proportional to 8,149.14, 12,215.16 and 3,769.47

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Solution

The fourth proportional to 8,149.14, 12,215.16 and 3,769.47 is: 5,650.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149.14 : 12,215.16 = 3,769.47 : x
  2. Step 2: Convert to fraction form
    8,149.14/12,215.16 = 3,769.47/x
  3. Step 3: Cross multiply
    8,149.14x = 12,215.16 × 3,769.47
  4. Step 4: Simplify right side
    8,149.14x = 46,044,679.17
  5. Step 5: Solve for x
    x = 46,044,679.17/8,149.14
  6. Step 6: Final answer
    x = 5,650.25

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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.