Home / 13,819.02-20,734.65-7,243.64

Finding the Fourth Proportional to 13,819.02, 20,734.65 and 7,243.64

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Solution

The fourth proportional to 13,819.02, 20,734.65 and 7,243.64 is: 10,868.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.02 : 20,734.65 = 7,243.64 : x
  2. Step 2: Convert to fraction form
    13,819.02/20,734.65 = 7,243.64/x
  3. Step 3: Cross multiply
    13,819.02x = 20,734.65 × 7,243.64
  4. Step 4: Simplify right side
    13,819.02x = 150,194,236.45
  5. Step 5: Solve for x
    x = 150,194,236.45/13,819.02
  6. Step 6: Final answer
    x = 10,868.66

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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.