Home / 12,974.28-19,454.45-4,087.95

Finding the Fourth Proportional to 12,974.28, 19,454.45 and 4,087.95

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Solution

The fourth proportional to 12,974.28, 19,454.45 and 4,087.95 is: 6,129.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,974.28 : 19,454.45 = 4,087.95 : x
  2. Step 2: Convert to fraction form
    12,974.28/19,454.45 = 4,087.95/x
  3. Step 3: Cross multiply
    12,974.28x = 19,454.45 × 4,087.95
  4. Step 4: Simplify right side
    12,974.28x = 79,528,798.44
  5. Step 5: Solve for x
    x = 79,528,798.44/12,974.28
  6. Step 6: Final answer
    x = 6,129.73

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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.