Home / 12,144.32-18,211.69-5,902.49

Finding the Fourth Proportional to 12,144.32, 18,211.69 and 5,902.49

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Solution

The fourth proportional to 12,144.32, 18,211.69 and 5,902.49 is: 8,851.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.32 : 18,211.69 = 5,902.49 : x
  2. Step 2: Convert to fraction form
    12,144.32/18,211.69 = 5,902.49/x
  3. Step 3: Cross multiply
    12,144.32x = 18,211.69 × 5,902.49
  4. Step 4: Simplify right side
    12,144.32x = 107,494,318.11
  5. Step 5: Solve for x
    x = 107,494,318.11/12,144.32
  6. Step 6: Final answer
    x = 8,851.41

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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.