Home / 13,601.85-20,402.25-3,740.88

Finding the Fourth Proportional to 13,601.85, 20,402.25 and 3,740.88

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Solution

The fourth proportional to 13,601.85, 20,402.25 and 3,740.88 is: 5,611.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.85 : 20,402.25 = 3,740.88 : x
  2. Step 2: Convert to fraction form
    13,601.85/20,402.25 = 3,740.88/x
  3. Step 3: Cross multiply
    13,601.85x = 20,402.25 × 3,740.88
  4. Step 4: Simplify right side
    13,601.85x = 76,322,368.98
  5. Step 5: Solve for x
    x = 76,322,368.98/13,601.85
  6. Step 6: Final answer
    x = 5,611.18

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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.