Home / 13,881.60-20,832.48-5,449.32

Finding the Fourth Proportional to 13,881.60, 20,832.48 and 5,449.32

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Solution

The fourth proportional to 13,881.60, 20,832.48 and 5,449.32 is: 8,177.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.60 : 20,832.48 = 5,449.32 : x
  2. Step 2: Convert to fraction form
    13,881.60/20,832.48 = 5,449.32/x
  3. Step 3: Cross multiply
    13,881.60x = 20,832.48 × 5,449.32
  4. Step 4: Simplify right side
    13,881.60x = 113,522,849.91
  5. Step 5: Solve for x
    x = 113,522,849.91/13,881.60
  6. Step 6: Final answer
    x = 8,177.94

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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.