Home / 12,738.24-19,107.02-3,378.29

Finding the Fourth Proportional to 12,738.24, 19,107.02 and 3,378.29

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Solution

The fourth proportional to 12,738.24, 19,107.02 and 3,378.29 is: 5,067.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.24 : 19,107.02 = 3,378.29 : x
  2. Step 2: Convert to fraction form
    12,738.24/19,107.02 = 3,378.29/x
  3. Step 3: Cross multiply
    12,738.24x = 19,107.02 × 3,378.29
  4. Step 4: Simplify right side
    12,738.24x = 64,548,967.51
  5. Step 5: Solve for x
    x = 64,548,967.51/12,738.24
  6. Step 6: Final answer
    x = 5,067.34

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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.