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Finding the Fourth Proportional to 18,343.12, 27,492 and 10,452.25

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Solution

The fourth proportional to 18,343.12, 27,492 and 10,452.25 is: 15,665.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.12 : 27,492 = 10,452.25 : x
  2. Step 2: Convert to fraction form
    18,343.12/27,492 = 10,452.25/x
  3. Step 3: Cross multiply
    18,343.12x = 27,492 × 10,452.25
  4. Step 4: Simplify right side
    18,343.12x = 287,353,257
  5. Step 5: Solve for x
    x = 287,353,257/18,343.12
  6. Step 6: Final answer
    x = 15,665.45

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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.