Home / 12,677.20-19,015.80-5,751.70

Finding the Fourth Proportional to 12,677.20, 19,015.80 and 5,751.70

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Solution

The fourth proportional to 12,677.20, 19,015.80 and 5,751.70 is: 8,627.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,677.20 : 19,015.80 = 5,751.70 : x
  2. Step 2: Convert to fraction form
    12,677.20/19,015.80 = 5,751.70/x
  3. Step 3: Cross multiply
    12,677.20x = 19,015.80 × 5,751.70
  4. Step 4: Simplify right side
    12,677.20x = 109,373,176.86
  5. Step 5: Solve for x
    x = 109,373,176.86/12,677.20
  6. Step 6: Final answer
    x = 8,627.55

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Similar ratio
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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.