Home / 16,930.40-25,396.40-5,251.80

Finding the Fourth Proportional to 16,930.40, 25,396.40 and 5,251.80

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Solution

The fourth proportional to 16,930.40, 25,396.40 and 5,251.80 is: 7,877.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,930.40 : 25,396.40 = 5,251.80 : x
  2. Step 2: Convert to fraction form
    16,930.40/25,396.40 = 5,251.80/x
  3. Step 3: Cross multiply
    16,930.40x = 25,396.40 × 5,251.80
  4. Step 4: Simplify right side
    16,930.40x = 133,376,813.52
  5. Step 5: Solve for x
    x = 133,376,813.52/16,930.40
  6. Step 6: Final answer
    x = 7,877.95

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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.