Home / 13,067.20-19,600.80-10,475.20

Finding the Fourth Proportional to 13,067.20, 19,600.80 and 10,475.20

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Solution

The fourth proportional to 13,067.20, 19,600.80 and 10,475.20 is: 15,712.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,067.20 : 19,600.80 = 10,475.20 : x
  2. Step 2: Convert to fraction form
    13,067.20/19,600.80 = 10,475.20/x
  3. Step 3: Cross multiply
    13,067.20x = 19,600.80 × 10,475.20
  4. Step 4: Simplify right side
    13,067.20x = 205,322,300.16
  5. Step 5: Solve for x
    x = 205,322,300.16/13,067.20
  6. Step 6: Final answer
    x = 15,712.80

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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.