Home / 10,507.80-15,744.68-4,947.96

Finding the Fourth Proportional to 10,507.80, 15,744.68 and 4,947.96

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Solution

The fourth proportional to 10,507.80, 15,744.68 and 4,947.96 is: 7,413.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,507.80 : 15,744.68 = 4,947.96 : x
  2. Step 2: Convert to fraction form
    10,507.80/15,744.68 = 4,947.96/x
  3. Step 3: Cross multiply
    10,507.80x = 15,744.68 × 4,947.96
  4. Step 4: Simplify right side
    10,507.80x = 77,904,046.85
  5. Step 5: Solve for x
    x = 77,904,046.85/10,507.80
  6. Step 6: Final answer
    x = 7,413.93

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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.