Home / 12,825.88-19,238.29-4,507.78

Finding the Fourth Proportional to 12,825.88, 19,238.29 and 4,507.78

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Solution

The fourth proportional to 12,825.88, 19,238.29 and 4,507.78 is: 6,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,825.88 : 19,238.29 = 4,507.78 : x
  2. Step 2: Convert to fraction form
    12,825.88/19,238.29 = 4,507.78/x
  3. Step 3: Cross multiply
    12,825.88x = 19,238.29 × 4,507.78
  4. Step 4: Simplify right side
    12,825.88x = 86,721,978.90
  5. Step 5: Solve for x
    x = 86,721,978.90/12,825.88
  6. Step 6: Final answer
    x = 6,761.48

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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.