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Finding the Fourth Proportional to 18,895.92, 28,334.16 and 8,502

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Solution

The fourth proportional to 18,895.92, 28,334.16 and 8,502 is: 12,748.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,895.92 : 28,334.16 = 8,502 : x
  2. Step 2: Convert to fraction form
    18,895.92/28,334.16 = 8,502/x
  3. Step 3: Cross multiply
    18,895.92x = 28,334.16 × 8,502
  4. Step 4: Simplify right side
    18,895.92x = 240,897,028.32
  5. Step 5: Solve for x
    x = 240,897,028.32/18,895.92
  6. Step 6: Final answer
    x = 12,748.63

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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.