Home / 9,619.78-14,437.23-4,939.60

Finding the Fourth Proportional to 9,619.78, 14,437.23 and 4,939.60

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Solution

The fourth proportional to 9,619.78, 14,437.23 and 4,939.60 is: 7,413.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,619.78 : 14,437.23 = 4,939.60 : x
  2. Step 2: Convert to fraction form
    9,619.78/14,437.23 = 4,939.60/x
  3. Step 3: Cross multiply
    9,619.78x = 14,437.23 × 4,939.60
  4. Step 4: Simplify right side
    9,619.78x = 71,314,141.31
  5. Step 5: Solve for x
    x = 71,314,141.31/9,619.78
  6. Step 6: Final answer
    x = 7,413.28

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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.