Home / 11,180.78-16,749.30-9,209.24

Finding the Fourth Proportional to 11,180.78, 16,749.30 and 9,209.24

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Solution

The fourth proportional to 11,180.78, 16,749.30 and 9,209.24 is: 13,795.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.78 : 16,749.30 = 9,209.24 : x
  2. Step 2: Convert to fraction form
    11,180.78/16,749.30 = 9,209.24/x
  3. Step 3: Cross multiply
    11,180.78x = 16,749.30 × 9,209.24
  4. Step 4: Simplify right side
    11,180.78x = 154,248,323.53
  5. Step 5: Solve for x
    x = 154,248,323.53/11,180.78
  6. Step 6: Final answer
    x = 13,795.85

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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.