Home / 13,815.36-19,067.40-8,150.22

Finding the Fourth Proportional to 13,815.36, 19,067.40 and 8,150.22

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Solution

The fourth proportional to 13,815.36, 19,067.40 and 8,150.22 is: 11,248.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.36 : 19,067.40 = 8,150.22 : x
  2. Step 2: Convert to fraction form
    13,815.36/19,067.40 = 8,150.22/x
  3. Step 3: Cross multiply
    13,815.36x = 19,067.40 × 8,150.22
  4. Step 4: Simplify right side
    13,815.36x = 155,403,504.83
  5. Step 5: Solve for x
    x = 155,403,504.83/13,815.36
  6. Step 6: Final answer
    x = 11,248.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.