Home / 13,663.44-20,497.31-4,781.25

Finding the Fourth Proportional to 13,663.44, 20,497.31 and 4,781.25

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Solution

The fourth proportional to 13,663.44, 20,497.31 and 4,781.25 is: 7,172.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.44 : 20,497.31 = 4,781.25 : x
  2. Step 2: Convert to fraction form
    13,663.44/20,497.31 = 4,781.25/x
  3. Step 3: Cross multiply
    13,663.44x = 20,497.31 × 4,781.25
  4. Step 4: Simplify right side
    13,663.44x = 98,002,660.95
  5. Step 5: Solve for x
    x = 98,002,660.95/13,663.44
  6. Step 6: Final answer
    x = 7,172.62

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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.