Home / 12,013.68-18,028.96-4,223.04

Finding the Fourth Proportional to 12,013.68, 18,028.96 and 4,223.04

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Solution

The fourth proportional to 12,013.68, 18,028.96 and 4,223.04 is: 6,337.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.68 : 18,028.96 = 4,223.04 : x
  2. Step 2: Convert to fraction form
    12,013.68/18,028.96 = 4,223.04/x
  3. Step 3: Cross multiply
    12,013.68x = 18,028.96 × 4,223.04
  4. Step 4: Simplify right side
    12,013.68x = 76,137,019.24
  5. Step 5: Solve for x
    x = 76,137,019.24/12,013.68
  6. Step 6: Final answer
    x = 6,337.53

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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.