Home / 15,377.44-21,222.44-9,413.05

Finding the Fourth Proportional to 15,377.44, 21,222.44 and 9,413.05

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Solution

The fourth proportional to 15,377.44, 21,222.44 and 9,413.05 is: 12,990.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,377.44 : 21,222.44 = 9,413.05 : x
  2. Step 2: Convert to fraction form
    15,377.44/21,222.44 = 9,413.05/x
  3. Step 3: Cross multiply
    15,377.44x = 21,222.44 × 9,413.05
  4. Step 4: Simplify right side
    15,377.44x = 199,767,841.78
  5. Step 5: Solve for x
    x = 199,767,841.78/15,377.44
  6. Step 6: Final answer
    x = 12,990.97

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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.