Home / 19,413.82-26,790.28-10,915.71

Finding the Fourth Proportional to 19,413.82, 26,790.28 and 10,915.71

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Solution

The fourth proportional to 19,413.82, 26,790.28 and 10,915.71 is: 15,063.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,413.82 : 26,790.28 = 10,915.71 : x
  2. Step 2: Convert to fraction form
    19,413.82/26,790.28 = 10,915.71/x
  3. Step 3: Cross multiply
    19,413.82x = 26,790.28 × 10,915.71
  4. Step 4: Simplify right side
    19,413.82x = 292,434,927.30
  5. Step 5: Solve for x
    x = 292,434,927.30/19,413.82
  6. Step 6: Final answer
    x = 15,063.23

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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.