Home / 12,222.46-18,331.26-3,455.02

Finding the Fourth Proportional to 12,222.46, 18,331.26 and 3,455.02

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Solution

The fourth proportional to 12,222.46, 18,331.26 and 3,455.02 is: 5,181.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.46 : 18,331.26 = 3,455.02 : x
  2. Step 2: Convert to fraction form
    12,222.46/18,331.26 = 3,455.02/x
  3. Step 3: Cross multiply
    12,222.46x = 18,331.26 × 3,455.02
  4. Step 4: Simplify right side
    12,222.46x = 63,334,869.93
  5. Step 5: Solve for x
    x = 63,334,869.93/12,222.46
  6. Step 6: Final answer
    x = 5,181.84

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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.