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Finding the Fourth Proportional to 18,225.36, 27,351 and 8,375.76

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Solution

The fourth proportional to 18,225.36, 27,351 and 8,375.76 is: 12,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.36 : 27,351 = 8,375.76 : x
  2. Step 2: Convert to fraction form
    18,225.36/27,351 = 8,375.76/x
  3. Step 3: Cross multiply
    18,225.36x = 27,351 × 8,375.76
  4. Step 4: Simplify right side
    18,225.36x = 229,085,411.76
  5. Step 5: Solve for x
    x = 229,085,411.76/18,225.36
  6. Step 6: Final answer
    x = 12,569.60

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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.