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Finding the Fourth Proportional to 18,148.20, 27,222.30 and 8,306.70

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Solution

The fourth proportional to 18,148.20, 27,222.30 and 8,306.70 is: 12,460.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,148.20 : 27,222.30 = 8,306.70 : x
  2. Step 2: Convert to fraction form
    18,148.20/27,222.30 = 8,306.70/x
  3. Step 3: Cross multiply
    18,148.20x = 27,222.30 × 8,306.70
  4. Step 4: Simplify right side
    18,148.20x = 226,127,479.41
  5. Step 5: Solve for x
    x = 226,127,479.41/18,148.20
  6. Step 6: Final answer
    x = 12,460.05

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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.