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Finding the Fourth Proportional to 18,118.32, 25,002 and 10,052.40

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Solution

The fourth proportional to 18,118.32, 25,002 and 10,052.40 is: 13,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.32 : 25,002 = 10,052.40 : x
  2. Step 2: Convert to fraction form
    18,118.32/25,002 = 10,052.40/x
  3. Step 3: Cross multiply
    18,118.32x = 25,002 × 10,052.40
  4. Step 4: Simplify right side
    18,118.32x = 251,330,104.80
  5. Step 5: Solve for x
    x = 251,330,104.80/18,118.32
  6. Step 6: Final answer
    x = 13,871.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.