Home / 10,949.72-16,399.90-7,677.42

Finding the Fourth Proportional to 10,949.72, 16,399.90 and 7,677.42

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Solution

The fourth proportional to 10,949.72, 16,399.90 and 7,677.42 is: 11,498.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,949.72 : 16,399.90 = 7,677.42 : x
  2. Step 2: Convert to fraction form
    10,949.72/16,399.90 = 7,677.42/x
  3. Step 3: Cross multiply
    10,949.72x = 16,399.90 × 7,677.42
  4. Step 4: Simplify right side
    10,949.72x = 125,908,868.36
  5. Step 5: Solve for x
    x = 125,908,868.36/10,949.72
  6. Step 6: Final answer
    x = 11,498.83

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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.