Home / 16,865.28-23,274-9,413.28

Finding the Fourth Proportional to 16,865.28, 23,274 and 9,413.28

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Solution

The fourth proportional to 16,865.28, 23,274 and 9,413.28 is: 12,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,865.28 : 23,274 = 9,413.28 : x
  2. Step 2: Convert to fraction form
    16,865.28/23,274 = 9,413.28/x
  3. Step 3: Cross multiply
    16,865.28x = 23,274 × 9,413.28
  4. Step 4: Simplify right side
    16,865.28x = 219,084,678.72
  5. Step 5: Solve for x
    x = 219,084,678.72/16,865.28
  6. Step 6: Final answer
    x = 12,990.28

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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.