Home / 12,775.31-19,162.95-3,414.82

Finding the Fourth Proportional to 12,775.31, 19,162.95 and 3,414.82

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Solution

The fourth proportional to 12,775.31, 19,162.95 and 3,414.82 is: 5,122.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.31 : 19,162.95 = 3,414.82 : x
  2. Step 2: Convert to fraction form
    12,775.31/19,162.95 = 3,414.82/x
  3. Step 3: Cross multiply
    12,775.31x = 19,162.95 × 3,414.82
  4. Step 4: Simplify right side
    12,775.31x = 65,438,055.90
  5. Step 5: Solve for x
    x = 65,438,055.90/12,775.31
  6. Step 6: Final answer
    x = 5,122.23

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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.