Home / 19,413.52-26,790.55-10,915.65

Finding the Fourth Proportional to 19,413.52, 26,790.55 and 10,915.65

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Solution

The fourth proportional to 19,413.52, 26,790.55 and 10,915.65 is: 15,063.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,413.52 : 26,790.55 = 10,915.65 : x
  2. Step 2: Convert to fraction form
    19,413.52/26,790.55 = 10,915.65/x
  3. Step 3: Cross multiply
    19,413.52x = 26,790.55 × 10,915.65
  4. Step 4: Simplify right side
    19,413.52x = 292,436,239.82
  5. Step 5: Solve for x
    x = 292,436,239.82/19,413.52
  6. Step 6: Final answer
    x = 15,063.54

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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.