Home / 16,938.06-25,406.87-5,251.28

Finding the Fourth Proportional to 16,938.06, 25,406.87 and 5,251.28

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Solution

The fourth proportional to 16,938.06, 25,406.87 and 5,251.28 is: 7,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,938.06 : 25,406.87 = 5,251.28 : x
  2. Step 2: Convert to fraction form
    16,938.06/25,406.87 = 5,251.28/x
  3. Step 3: Cross multiply
    16,938.06x = 25,406.87 × 5,251.28
  4. Step 4: Simplify right side
    16,938.06x = 133,418,625.55
  5. Step 5: Solve for x
    x = 133,418,625.55/16,938.06
  6. Step 6: Final answer
    x = 7,876.85

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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.