Home / 15,413.55-21,269.89-9,039.25

Finding the Fourth Proportional to 15,413.55, 21,269.89 and 9,039.25

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Solution

The fourth proportional to 15,413.55, 21,269.89 and 9,039.25 is: 12,473.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,413.55 : 21,269.89 = 9,039.25 : x
  2. Step 2: Convert to fraction form
    15,413.55/21,269.89 = 9,039.25/x
  3. Step 3: Cross multiply
    15,413.55x = 21,269.89 × 9,039.25
  4. Step 4: Simplify right side
    15,413.55x = 192,263,853.18
  5. Step 5: Solve for x
    x = 192,263,853.18/15,413.55
  6. Step 6: Final answer
    x = 12,473.69

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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.