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Finding the Fourth Proportional to 16,479.54, 22,743.17 and 9,310.78

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Solution

The fourth proportional to 16,479.54, 22,743.17 and 9,310.78 is: 12,849.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,479.54 : 22,743.17 = 9,310.78 : x
  2. Step 2: Convert to fraction form
    16,479.54/22,743.17 = 9,310.78/x
  3. Step 3: Cross multiply
    16,479.54x = 22,743.17 × 9,310.78
  4. Step 4: Simplify right side
    16,479.54x = 211,756,631.38
  5. Step 5: Solve for x
    x = 211,756,631.38/16,479.54
  6. Step 6: Final answer
    x = 12,849.67

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1.5x scale

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.