Home / 13,741.86-20,614.42-4,378.62

Finding the Fourth Proportional to 13,741.86, 20,614.42 and 4,378.62

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Solution

The fourth proportional to 13,741.86, 20,614.42 and 4,378.62 is: 6,568.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,741.86 : 20,614.42 = 4,378.62 : x
  2. Step 2: Convert to fraction form
    13,741.86/20,614.42 = 4,378.62/x
  3. Step 3: Cross multiply
    13,741.86x = 20,614.42 × 4,378.62
  4. Step 4: Simplify right side
    13,741.86x = 90,262,711.70
  5. Step 5: Solve for x
    x = 90,262,711.70/13,741.86
  6. Step 6: Final answer
    x = 6,568.45

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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.