Home / 13,748.20-20,622.62-3,360.04

Finding the Fourth Proportional to 13,748.20, 20,622.62 and 3,360.04

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Solution

The fourth proportional to 13,748.20, 20,622.62 and 3,360.04 is: 5,040.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.20 : 20,622.62 = 3,360.04 : x
  2. Step 2: Convert to fraction form
    13,748.20/20,622.62 = 3,360.04/x
  3. Step 3: Cross multiply
    13,748.20x = 20,622.62 × 3,360.04
  4. Step 4: Simplify right side
    13,748.20x = 69,292,828.10
  5. Step 5: Solve for x
    x = 69,292,828.10/13,748.20
  6. Step 6: Final answer
    x = 5,040.14

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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.