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Finding the Fourth Proportional to 12,522.70, 17,299.07 and 10,954.20

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Solution

The fourth proportional to 12,522.70, 17,299.07 and 10,954.20 is: 15,132.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522.70 : 17,299.07 = 10,954.20 : x
  2. Step 2: Convert to fraction form
    12,522.70/17,299.07 = 10,954.20/x
  3. Step 3: Cross multiply
    12,522.70x = 17,299.07 × 10,954.20
  4. Step 4: Simplify right side
    12,522.70x = 189,497,523.77
  5. Step 5: Solve for x
    x = 189,497,523.77/12,522.70
  6. Step 6: Final answer
    x = 15,132.32

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1.5x scale

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.