Home / 12,222.10-18,334.05-4,429.90

Finding the Fourth Proportional to 12,222.10, 18,334.05 and 4,429.90

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Solution

The fourth proportional to 12,222.10, 18,334.05 and 4,429.90 is: 6,645.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.10 : 18,334.05 = 4,429.90 : x
  2. Step 2: Convert to fraction form
    12,222.10/18,334.05 = 4,429.90/x
  3. Step 3: Cross multiply
    12,222.10x = 18,334.05 × 4,429.90
  4. Step 4: Simplify right side
    12,222.10x = 81,218,008.10
  5. Step 5: Solve for x
    x = 81,218,008.10/12,222.10
  6. Step 6: Final answer
    x = 6,645.18

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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.