Home / 14,751.82-20,347.39-8,778.88

Finding the Fourth Proportional to 14,751.82, 20,347.39 and 8,778.88

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Solution

The fourth proportional to 14,751.82, 20,347.39 and 8,778.88 is: 12,108.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,751.82 : 20,347.39 = 8,778.88 : x
  2. Step 2: Convert to fraction form
    14,751.82/20,347.39 = 8,778.88/x
  3. Step 3: Cross multiply
    14,751.82x = 20,347.39 × 8,778.88
  4. Step 4: Simplify right side
    14,751.82x = 178,627,149.49
  5. Step 5: Solve for x
    x = 178,627,149.49/14,751.82
  6. Step 6: Final answer
    x = 12,108.83

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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.