Home / 11,174.40-16,765.20-7,480.80

Finding the Fourth Proportional to 11,174.40, 16,765.20 and 7,480.80

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Solution

The fourth proportional to 11,174.40, 16,765.20 and 7,480.80 is: 11,223.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,174.40 : 16,765.20 = 7,480.80 : x
  2. Step 2: Convert to fraction form
    11,174.40/16,765.20 = 7,480.80/x
  3. Step 3: Cross multiply
    11,174.40x = 16,765.20 × 7,480.80
  4. Step 4: Simplify right side
    11,174.40x = 125,417,108.16
  5. Step 5: Solve for x
    x = 125,417,108.16/11,174.40
  6. Step 6: Final answer
    x = 11,223.61

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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.