Home / 10,780.82-16,171.28-3,760.89

Finding the Fourth Proportional to 10,780.82, 16,171.28 and 3,760.89

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Solution

The fourth proportional to 10,780.82, 16,171.28 and 3,760.89 is: 5,641.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780.82 : 16,171.28 = 3,760.89 : x
  2. Step 2: Convert to fraction form
    10,780.82/16,171.28 = 3,760.89/x
  3. Step 3: Cross multiply
    10,780.82x = 16,171.28 × 3,760.89
  4. Step 4: Simplify right side
    10,780.82x = 60,818,401.24
  5. Step 5: Solve for x
    x = 60,818,401.24/10,780.82
  6. Step 6: Final answer
    x = 5,641.35

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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.