Home / 8,104.77-12,149.86-2,909.43

Finding the Fourth Proportional to 8,104.77, 12,149.86 and 2,909.43

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Solution

The fourth proportional to 8,104.77, 12,149.86 and 2,909.43 is: 4,361.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.77 : 12,149.86 = 2,909.43 : x
  2. Step 2: Convert to fraction form
    8,104.77/12,149.86 = 2,909.43/x
  3. Step 3: Cross multiply
    8,104.77x = 12,149.86 × 2,909.43
  4. Step 4: Simplify right side
    8,104.77x = 35,349,167.18
  5. Step 5: Solve for x
    x = 35,349,167.18/8,104.77
  6. Step 6: Final answer
    x = 4,361.53

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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.