Home / 13,764.76-20,650.02-7,189.18

Finding the Fourth Proportional to 13,764.76, 20,650.02 and 7,189.18

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Solution

The fourth proportional to 13,764.76, 20,650.02 and 7,189.18 is: 10,785.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.76 : 20,650.02 = 7,189.18 : x
  2. Step 2: Convert to fraction form
    13,764.76/20,650.02 = 7,189.18/x
  3. Step 3: Cross multiply
    13,764.76x = 20,650.02 × 7,189.18
  4. Step 4: Simplify right side
    13,764.76x = 148,456,710.78
  5. Step 5: Solve for x
    x = 148,456,710.78/13,764.76
  6. Step 6: Final answer
    x = 10,785.27

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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.