Home / 13,769.54-20,603.28-8,225.90

Finding the Fourth Proportional to 13,769.54, 20,603.28 and 8,225.90

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Solution

The fourth proportional to 13,769.54, 20,603.28 and 8,225.90 is: 12,308.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.54 : 20,603.28 = 8,225.90 : x
  2. Step 2: Convert to fraction form
    13,769.54/20,603.28 = 8,225.90/x
  3. Step 3: Cross multiply
    13,769.54x = 20,603.28 × 8,225.90
  4. Step 4: Simplify right side
    13,769.54x = 169,480,520.95
  5. Step 5: Solve for x
    x = 169,480,520.95/13,769.54
  6. Step 6: Final answer
    x = 12,308.36

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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.