Home / 13,631.88-20,447.62-3,637.60

Finding the Fourth Proportional to 13,631.88, 20,447.62 and 3,637.60

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Solution

The fourth proportional to 13,631.88, 20,447.62 and 3,637.60 is: 5,456.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.88 : 20,447.62 = 3,637.60 : x
  2. Step 2: Convert to fraction form
    13,631.88/20,447.62 = 3,637.60/x
  3. Step 3: Cross multiply
    13,631.88x = 20,447.62 × 3,637.60
  4. Step 4: Simplify right side
    13,631.88x = 74,380,262.51
  5. Step 5: Solve for x
    x = 74,380,262.51/13,631.88
  6. Step 6: Final answer
    x = 5,456.35

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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.