Home / 13,587.29-20,379.57-3,727.56

Finding the Fourth Proportional to 13,587.29, 20,379.57 and 3,727.56

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Solution

The fourth proportional to 13,587.29, 20,379.57 and 3,727.56 is: 5,590.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.29 : 20,379.57 = 3,727.56 : x
  2. Step 2: Convert to fraction form
    13,587.29/20,379.57 = 3,727.56/x
  3. Step 3: Cross multiply
    13,587.29x = 20,379.57 × 3,727.56
  4. Step 4: Simplify right side
    13,587.29x = 75,966,069.95
  5. Step 5: Solve for x
    x = 75,966,069.95/13,587.29
  6. Step 6: Final answer
    x = 5,590.97

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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.