Home / 10,144.78-15,222.20-6,850.64

Finding the Fourth Proportional to 10,144.78, 15,222.20 and 6,850.64

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Solution

The fourth proportional to 10,144.78, 15,222.20 and 6,850.64 is: 10,279.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,144.78 : 15,222.20 = 6,850.64 : x
  2. Step 2: Convert to fraction form
    10,144.78/15,222.20 = 6,850.64/x
  3. Step 3: Cross multiply
    10,144.78x = 15,222.20 × 6,850.64
  4. Step 4: Simplify right side
    10,144.78x = 104,281,816.01
  5. Step 5: Solve for x
    x = 104,281,816.01/10,144.78
  6. Step 6: Final answer
    x = 10,279.36

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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.