Home / 14,067.73-19,413.23-7,780.11

Finding the Fourth Proportional to 14,067.73, 19,413.23 and 7,780.11

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Solution

The fourth proportional to 14,067.73, 19,413.23 and 7,780.11 is: 10,736.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,067.73 : 19,413.23 = 7,780.11 : x
  2. Step 2: Convert to fraction form
    14,067.73/19,413.23 = 7,780.11/x
  3. Step 3: Cross multiply
    14,067.73x = 19,413.23 × 7,780.11
  4. Step 4: Simplify right side
    14,067.73x = 151,037,064.86
  5. Step 5: Solve for x
    x = 151,037,064.86/14,067.73
  6. Step 6: Final answer
    x = 10,736.42

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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.