Home / 13,587.19-20,380.79-6,193.77

Finding the Fourth Proportional to 13,587.19, 20,380.79 and 6,193.77

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Solution

The fourth proportional to 13,587.19, 20,380.79 and 6,193.77 is: 9,290.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.19 : 20,380.79 = 6,193.77 : x
  2. Step 2: Convert to fraction form
    13,587.19/20,380.79 = 6,193.77/x
  3. Step 3: Cross multiply
    13,587.19x = 20,380.79 × 6,193.77
  4. Step 4: Simplify right side
    13,587.19x = 126,233,847.31
  5. Step 5: Solve for x
    x = 126,233,847.31/13,587.19
  6. Step 6: Final answer
    x = 9,290.65

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Similar ratio
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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.