Home / 10,082.78-15,093.21-9,132.38

Finding the Fourth Proportional to 10,082.78, 15,093.21 and 9,132.38

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Solution

The fourth proportional to 10,082.78, 15,093.21 and 9,132.38 is: 13,670.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,082.78 : 15,093.21 = 9,132.38 : x
  2. Step 2: Convert to fraction form
    10,082.78/15,093.21 = 9,132.38/x
  3. Step 3: Cross multiply
    10,082.78x = 15,093.21 × 9,132.38
  4. Step 4: Simplify right side
    10,082.78x = 137,836,929.14
  5. Step 5: Solve for x
    x = 137,836,929.14/10,082.78
  6. Step 6: Final answer
    x = 13,670.53

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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.