Home / 13,581.15-20,379.45-10,611.24

Finding the Fourth Proportional to 13,581.15, 20,379.45 and 10,611.24

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Solution

The fourth proportional to 13,581.15, 20,379.45 and 10,611.24 is: 15,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.15 : 20,379.45 = 10,611.24 : x
  2. Step 2: Convert to fraction form
    13,581.15/20,379.45 = 10,611.24/x
  3. Step 3: Cross multiply
    13,581.15x = 20,379.45 × 10,611.24
  4. Step 4: Simplify right side
    13,581.15x = 216,251,235.02
  5. Step 5: Solve for x
    x = 216,251,235.02/13,581.15
  6. Step 6: Final answer
    x = 15,922.90

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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.