Home / 7,345.28-11,015.56-2,413.76

Finding the Fourth Proportional to 7,345.28, 11,015.56 and 2,413.76

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Solution

The fourth proportional to 7,345.28, 11,015.56 and 2,413.76 is: 3,619.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.28 : 11,015.56 = 2,413.76 : x
  2. Step 2: Convert to fraction form
    7,345.28/11,015.56 = 2,413.76/x
  3. Step 3: Cross multiply
    7,345.28x = 11,015.56 × 2,413.76
  4. Step 4: Simplify right side
    7,345.28x = 26,588,918.11
  5. Step 5: Solve for x
    x = 26,588,918.11/7,345.28
  6. Step 6: Final answer
    x = 3,619.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.