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Finding the Fourth Proportional to 15,176, 20,942.88 and 8,552

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Solution

The fourth proportional to 15,176, 20,942.88 and 8,552 is: 11,801.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,176 : 20,942.88 = 8,552 : x
  2. Step 2: Convert to fraction form
    15,176/20,942.88 = 8,552/x
  3. Step 3: Cross multiply
    15,176x = 20,942.88 × 8,552
  4. Step 4: Simplify right side
    15,176x = 179,103,509.76
  5. Step 5: Solve for x
    x = 179,103,509.76/15,176
  6. Step 6: Final answer
    x = 11,801.76

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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.