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Finding the Fourth Proportional to 12,242.88, 18,364.19 and 3,008.88

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Solution

The fourth proportional to 12,242.88, 18,364.19 and 3,008.88 is: 4,513.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,242.88 : 18,364.19 = 3,008.88 : x
  2. Step 2: Convert to fraction form
    12,242.88/18,364.19 = 3,008.88/x
  3. Step 3: Cross multiply
    12,242.88x = 18,364.19 × 3,008.88
  4. Step 4: Simplify right side
    12,242.88x = 55,255,628.96
  5. Step 5: Solve for x
    x = 55,255,628.96/12,242.88
  6. Step 6: Final answer
    x = 4,513.29

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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.