Home / 12,721.14-19,082.10-10,860.54

Finding the Fourth Proportional to 12,721.14, 19,082.10 and 10,860.54

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Solution

The fourth proportional to 12,721.14, 19,082.10 and 10,860.54 is: 16,291.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.14 : 19,082.10 = 10,860.54 : x
  2. Step 2: Convert to fraction form
    12,721.14/19,082.10 = 10,860.54/x
  3. Step 3: Cross multiply
    12,721.14x = 19,082.10 × 10,860.54
  4. Step 4: Simplify right side
    12,721.14x = 207,241,910.33
  5. Step 5: Solve for x
    x = 207,241,910.33/12,721.14
  6. Step 6: Final answer
    x = 16,291.14

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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.