Home / 10,768.68-16,149.90-4,193.40

Finding the Fourth Proportional to 10,768.68, 16,149.90 and 4,193.40

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Solution

The fourth proportional to 10,768.68, 16,149.90 and 4,193.40 is: 6,288.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,768.68 : 16,149.90 = 4,193.40 : x
  2. Step 2: Convert to fraction form
    10,768.68/16,149.90 = 4,193.40/x
  3. Step 3: Cross multiply
    10,768.68x = 16,149.90 × 4,193.40
  4. Step 4: Simplify right side
    10,768.68x = 67,722,990.66
  5. Step 5: Solve for x
    x = 67,722,990.66/10,768.68
  6. Step 6: Final answer
    x = 6,288.89

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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.