Home / 11,178.24-16,765.50-3,385.20

Finding the Fourth Proportional to 11,178.24, 16,765.50 and 3,385.20

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Solution

The fourth proportional to 11,178.24, 16,765.50 and 3,385.20 is: 5,077.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.24 : 16,765.50 = 3,385.20 : x
  2. Step 2: Convert to fraction form
    11,178.24/16,765.50 = 3,385.20/x
  3. Step 3: Cross multiply
    11,178.24x = 16,765.50 × 3,385.20
  4. Step 4: Simplify right side
    11,178.24x = 56,754,570.60
  5. Step 5: Solve for x
    x = 56,754,570.60/11,178.24
  6. Step 6: Final answer
    x = 5,077.24

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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.