Home / 10,413.40-15,620.34-3,749.56

Finding the Fourth Proportional to 10,413.40, 15,620.34 and 3,749.56

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Solution

The fourth proportional to 10,413.40, 15,620.34 and 3,749.56 is: 5,624.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,413.40 : 15,620.34 = 3,749.56 : x
  2. Step 2: Convert to fraction form
    10,413.40/15,620.34 = 3,749.56/x
  3. Step 3: Cross multiply
    10,413.40x = 15,620.34 × 3,749.56
  4. Step 4: Simplify right side
    10,413.40x = 58,569,402.05
  5. Step 5: Solve for x
    x = 58,569,402.05/10,413.40
  6. Step 6: Final answer
    x = 5,624.43

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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.