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Finding the Fourth Proportional to 12,244.32, 18,348.48 and 7,241.54

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Solution

The fourth proportional to 12,244.32, 18,348.48 and 7,241.54 is: 10,851.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,244.32 : 18,348.48 = 7,241.54 : x
  2. Step 2: Convert to fraction form
    12,244.32/18,348.48 = 7,241.54/x
  3. Step 3: Cross multiply
    12,244.32x = 18,348.48 × 7,241.54
  4. Step 4: Simplify right side
    12,244.32x = 132,871,160.12
  5. Step 5: Solve for x
    x = 132,871,160.12/12,244.32
  6. Step 6: Final answer
    x = 10,851.66

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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.