Home / 13,741.38-20,612.16-3,880.62

Finding the Fourth Proportional to 13,741.38, 20,612.16 and 3,880.62

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Solution

The fourth proportional to 13,741.38, 20,612.16 and 3,880.62 is: 5,820.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,741.38 : 20,612.16 = 3,880.62 : x
  2. Step 2: Convert to fraction form
    13,741.38/20,612.16 = 3,880.62/x
  3. Step 3: Cross multiply
    13,741.38x = 20,612.16 × 3,880.62
  4. Step 4: Simplify right side
    13,741.38x = 79,987,960.34
  5. Step 5: Solve for x
    x = 79,987,960.34/13,741.38
  6. Step 6: Final answer
    x = 5,820.96

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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.