Home / 13,634.72-20,449.80-5,630.48

Finding the Fourth Proportional to 13,634.72, 20,449.80 and 5,630.48

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Solution

The fourth proportional to 13,634.72, 20,449.80 and 5,630.48 is: 8,444.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.72 : 20,449.80 = 5,630.48 : x
  2. Step 2: Convert to fraction form
    13,634.72/20,449.80 = 5,630.48/x
  3. Step 3: Cross multiply
    13,634.72x = 20,449.80 × 5,630.48
  4. Step 4: Simplify right side
    13,634.72x = 115,142,189.90
  5. Step 5: Solve for x
    x = 115,142,189.90/13,634.72
  6. Step 6: Final answer
    x = 8,444.78

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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.