Home / 13,873.26-19,144.54-7,904.42

Finding the Fourth Proportional to 13,873.26, 19,144.54 and 7,904.42

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Solution

The fourth proportional to 13,873.26, 19,144.54 and 7,904.42 is: 10,907.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873.26 : 19,144.54 = 7,904.42 : x
  2. Step 2: Convert to fraction form
    13,873.26/19,144.54 = 7,904.42/x
  3. Step 3: Cross multiply
    13,873.26x = 19,144.54 × 7,904.42
  4. Step 4: Simplify right side
    13,873.26x = 151,326,484.87
  5. Step 5: Solve for x
    x = 151,326,484.87/13,873.26
  6. Step 6: Final answer
    x = 10,907.78

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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.