Home / 15,413.01-21,269.96-8,339.41

Finding the Fourth Proportional to 15,413.01, 21,269.96 and 8,339.41

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Solution

The fourth proportional to 15,413.01, 21,269.96 and 8,339.41 is: 11,508.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,413.01 : 21,269.96 = 8,339.41 : x
  2. Step 2: Convert to fraction form
    15,413.01/21,269.96 = 8,339.41/x
  3. Step 3: Cross multiply
    15,413.01x = 21,269.96 × 8,339.41
  4. Step 4: Simplify right side
    15,413.01x = 177,378,933.29
  5. Step 5: Solve for x
    x = 177,378,933.29/15,413.01
  6. Step 6: Final answer
    x = 11,508.39

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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.