Home / 36,872.18-55,314.54-11,909.19

Finding the Fourth Proportional to 36,872.18, 55,314.54 and 11,909.19

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Solution

The fourth proportional to 36,872.18, 55,314.54 and 11,909.19 is: 17,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,872.18 : 55,314.54 = 11,909.19 : x
  2. Step 2: Convert to fraction form
    36,872.18/55,314.54 = 11,909.19/x
  3. Step 3: Cross multiply
    36,872.18x = 55,314.54 × 11,909.19
  4. Step 4: Simplify right side
    36,872.18x = 658,751,366.62
  5. Step 5: Solve for x
    x = 658,751,366.62/36,872.18
  6. Step 6: Final answer
    x = 17,865.81

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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.