Home / 19,110.18-28,643.40-7,413.38

Finding the Fourth Proportional to 19,110.18, 28,643.40 and 7,413.38

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Solution

The fourth proportional to 19,110.18, 28,643.40 and 7,413.38 is: 11,111.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110.18 : 28,643.40 = 7,413.38 : x
  2. Step 2: Convert to fraction form
    19,110.18/28,643.40 = 7,413.38/x
  3. Step 3: Cross multiply
    19,110.18x = 28,643.40 × 7,413.38
  4. Step 4: Simplify right side
    19,110.18x = 212,344,265.48
  5. Step 5: Solve for x
    x = 212,344,265.48/19,110.18
  6. Step 6: Final answer
    x = 11,111.58

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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.