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Finding the Fourth Proportional to 12,250.90, 18,352.05 and 7,305.85

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Solution

The fourth proportional to 12,250.90, 18,352.05 and 7,305.85 is: 10,944.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.90 : 18,352.05 = 7,305.85 : x
  2. Step 2: Convert to fraction form
    12,250.90/18,352.05 = 7,305.85/x
  3. Step 3: Cross multiply
    12,250.90x = 18,352.05 × 7,305.85
  4. Step 4: Simplify right side
    12,250.90x = 134,077,324.49
  5. Step 5: Solve for x
    x = 134,077,324.49/12,250.90
  6. Step 6: Final answer
    x = 10,944.28

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1.5x scale

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.