Home / 12,522.21-17,274.78-7,213.95

Finding the Fourth Proportional to 12,522.21, 17,274.78 and 7,213.95

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Solution

The fourth proportional to 12,522.21, 17,274.78 and 7,213.95 is: 9,951.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522.21 : 17,274.78 = 7,213.95 : x
  2. Step 2: Convert to fraction form
    12,522.21/17,274.78 = 7,213.95/x
  3. Step 3: Cross multiply
    12,522.21x = 17,274.78 × 7,213.95
  4. Step 4: Simplify right side
    12,522.21x = 124,619,399.18
  5. Step 5: Solve for x
    x = 124,619,399.18/12,522.21
  6. Step 6: Final answer
    x = 9,951.87

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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.