Home / 12,222.31-18,334.45-3,903.51

Finding the Fourth Proportional to 12,222.31, 18,334.45 and 3,903.51

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Solution

The fourth proportional to 12,222.31, 18,334.45 and 3,903.51 is: 5,855.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.31 : 18,334.45 = 3,903.51 : x
  2. Step 2: Convert to fraction form
    12,222.31/18,334.45 = 3,903.51/x
  3. Step 3: Cross multiply
    12,222.31x = 18,334.45 × 3,903.51
  4. Step 4: Simplify right side
    12,222.31x = 71,568,679.42
  5. Step 5: Solve for x
    x = 71,568,679.42/12,222.31
  6. Step 6: Final answer
    x = 5,855.58

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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.