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Finding the Fourth Proportional to 12,222.70, 18,334.04 and 4,331

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Solution

The fourth proportional to 12,222.70, 18,334.04 and 4,331 is: 6,496.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.70 : 18,334.04 = 4,331 : x
  2. Step 2: Convert to fraction form
    12,222.70/18,334.04 = 4,331/x
  3. Step 3: Cross multiply
    12,222.70x = 18,334.04 × 4,331
  4. Step 4: Simplify right side
    12,222.70x = 79,404,727.24
  5. Step 5: Solve for x
    x = 79,404,727.24/12,222.70
  6. Step 6: Final answer
    x = 6,496.50

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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.