Home / 10,251.72-15,299.16-9,144.44

Finding the Fourth Proportional to 10,251.72, 15,299.16 and 9,144.44

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Solution

The fourth proportional to 10,251.72, 15,299.16 and 9,144.44 is: 13,646.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,251.72 : 15,299.16 = 9,144.44 : x
  2. Step 2: Convert to fraction form
    10,251.72/15,299.16 = 9,144.44/x
  3. Step 3: Cross multiply
    10,251.72x = 15,299.16 × 9,144.44
  4. Step 4: Simplify right side
    10,251.72x = 139,902,250.67
  5. Step 5: Solve for x
    x = 139,902,250.67/10,251.72
  6. Step 6: Final answer
    x = 13,646.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.