Home / 10,974.80-16,440.60-6,579.20

Finding the Fourth Proportional to 10,974.80, 16,440.60 and 6,579.20

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Solution

The fourth proportional to 10,974.80, 16,440.60 and 6,579.20 is: 9,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,974.80 : 16,440.60 = 6,579.20 : x
  2. Step 2: Convert to fraction form
    10,974.80/16,440.60 = 6,579.20/x
  3. Step 3: Cross multiply
    10,974.80x = 16,440.60 × 6,579.20
  4. Step 4: Simplify right side
    10,974.80x = 108,165,995.52
  5. Step 5: Solve for x
    x = 108,165,995.52/10,974.80
  6. Step 6: Final answer
    x = 9,855.85

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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.