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Finding the Fourth Proportional to 18,324.28, 27,486.42 and 10,528.12

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Solution

The fourth proportional to 18,324.28, 27,486.42 and 10,528.12 is: 15,792.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.28 : 27,486.42 = 10,528.12 : x
  2. Step 2: Convert to fraction form
    18,324.28/27,486.42 = 10,528.12/x
  3. Step 3: Cross multiply
    18,324.28x = 27,486.42 × 10,528.12
  4. Step 4: Simplify right side
    18,324.28x = 289,380,328.13
  5. Step 5: Solve for x
    x = 289,380,328.13/18,324.28
  6. Step 6: Final answer
    x = 15,792.18

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Similar ratio
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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.