Home / 13,637.82-20,456.75-3,777.12

Finding the Fourth Proportional to 13,637.82, 20,456.75 and 3,777.12

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Solution

The fourth proportional to 13,637.82, 20,456.75 and 3,777.12 is: 5,665.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.82 : 20,456.75 = 3,777.12 : x
  2. Step 2: Convert to fraction form
    13,637.82/20,456.75 = 3,777.12/x
  3. Step 3: Cross multiply
    13,637.82x = 20,456.75 × 3,777.12
  4. Step 4: Simplify right side
    13,637.82x = 77,267,599.56
  5. Step 5: Solve for x
    x = 77,267,599.56/13,637.82
  6. Step 6: Final answer
    x = 5,665.69

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Similar ratio
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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.