Home / 11,538.48-15,922.32-6,821.76

Finding the Fourth Proportional to 11,538.48, 15,922.32 and 6,821.76

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Solution

The fourth proportional to 11,538.48, 15,922.32 and 6,821.76 is: 9,413.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,538.48 : 15,922.32 = 6,821.76 : x
  2. Step 2: Convert to fraction form
    11,538.48/15,922.32 = 6,821.76/x
  3. Step 3: Cross multiply
    11,538.48x = 15,922.32 × 6,821.76
  4. Step 4: Simplify right side
    11,538.48x = 108,618,245.68
  5. Step 5: Solve for x
    x = 108,618,245.68/11,538.48
  6. Step 6: Final answer
    x = 9,413.57

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Double scale
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Similar ratio
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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.