Home / 12,218.46-18,315.17-4,819.92

Finding the Fourth Proportional to 12,218.46, 18,315.17 and 4,819.92

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Solution

The fourth proportional to 12,218.46, 18,315.17 and 4,819.92 is: 7,224.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.46 : 18,315.17 = 4,819.92 : x
  2. Step 2: Convert to fraction form
    12,218.46/18,315.17 = 4,819.92/x
  3. Step 3: Cross multiply
    12,218.46x = 18,315.17 × 4,819.92
  4. Step 4: Simplify right side
    12,218.46x = 88,277,654.19
  5. Step 5: Solve for x
    x = 88,277,654.19/12,218.46
  6. Step 6: Final answer
    x = 7,224.94

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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.