Home / 13,748.70-20,608.87-5,417.45

Finding the Fourth Proportional to 13,748.70, 20,608.87 and 5,417.45

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Solution

The fourth proportional to 13,748.70, 20,608.87 and 5,417.45 is: 8,120.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.70 : 20,608.87 = 5,417.45 : x
  2. Step 2: Convert to fraction form
    13,748.70/20,608.87 = 5,417.45/x
  3. Step 3: Cross multiply
    13,748.70x = 20,608.87 × 5,417.45
  4. Step 4: Simplify right side
    13,748.70x = 111,647,522.78
  5. Step 5: Solve for x
    x = 111,647,522.78/13,748.70
  6. Step 6: Final answer
    x = 8,120.59

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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.