Home / 10,776.80-16,167.72-3,381.20

Finding the Fourth Proportional to 10,776.80, 16,167.72 and 3,381.20

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Solution

The fourth proportional to 10,776.80, 16,167.72 and 3,381.20 is: 5,072.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,776.80 : 16,167.72 = 3,381.20 : x
  2. Step 2: Convert to fraction form
    10,776.80/16,167.72 = 3,381.20/x
  3. Step 3: Cross multiply
    10,776.80x = 16,167.72 × 3,381.20
  4. Step 4: Simplify right side
    10,776.80x = 54,666,294.86
  5. Step 5: Solve for x
    x = 54,666,294.86/10,776.80
  6. Step 6: Final answer
    x = 5,072.59

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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.