Home / 13,580.73-20,371.10-3,720.06

Finding the Fourth Proportional to 13,580.73, 20,371.10 and 3,720.06

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Solution

The fourth proportional to 13,580.73, 20,371.10 and 3,720.06 is: 5,580.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,580.73 : 20,371.10 = 3,720.06 : x
  2. Step 2: Convert to fraction form
    13,580.73/20,371.10 = 3,720.06/x
  3. Step 3: Cross multiply
    13,580.73x = 20,371.10 × 3,720.06
  4. Step 4: Simplify right side
    13,580.73x = 75,781,695.67
  5. Step 5: Solve for x
    x = 75,781,695.67/13,580.73
  6. Step 6: Final answer
    x = 5,580.09

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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.