Home / 9,979.77-14,969.79-4,784.43

Finding the Fourth Proportional to 9,979.77, 14,969.79 and 4,784.43

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Solution

The fourth proportional to 9,979.77, 14,969.79 and 4,784.43 is: 7,176.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.77 : 14,969.79 = 4,784.43 : x
  2. Step 2: Convert to fraction form
    9,979.77/14,969.79 = 4,784.43/x
  3. Step 3: Cross multiply
    9,979.77x = 14,969.79 × 4,784.43
  4. Step 4: Simplify right side
    9,979.77x = 71,621,912.37
  5. Step 5: Solve for x
    x = 71,621,912.37/9,979.77
  6. Step 6: Final answer
    x = 7,176.71

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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.