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Finding the Fourth Proportional to 18,266.18, 25,207.66 and 10,306.86

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Solution

The fourth proportional to 18,266.18, 25,207.66 and 10,306.86 is: 14,223.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266.18 : 25,207.66 = 10,306.86 : x
  2. Step 2: Convert to fraction form
    18,266.18/25,207.66 = 10,306.86/x
  3. Step 3: Cross multiply
    18,266.18x = 25,207.66 × 10,306.86
  4. Step 4: Simplify right side
    18,266.18x = 259,811,824.72
  5. Step 5: Solve for x
    x = 259,811,824.72/18,266.18
  6. Step 6: Final answer
    x = 14,223.66

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