Home / 12,926.74-19,377.78-4,155.49

Finding the Fourth Proportional to 12,926.74, 19,377.78 and 4,155.49

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Solution

The fourth proportional to 12,926.74, 19,377.78 and 4,155.49 is: 6,229.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,926.74 : 19,377.78 = 4,155.49 : x
  2. Step 2: Convert to fraction form
    12,926.74/19,377.78 = 4,155.49/x
  3. Step 3: Cross multiply
    12,926.74x = 19,377.78 × 4,155.49
  4. Step 4: Simplify right side
    12,926.74x = 80,524,171.01
  5. Step 5: Solve for x
    x = 80,524,171.01/12,926.74
  6. Step 6: Final answer
    x = 6,229.27

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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.