Home / 7,979.39-11,004.38-4,995.50

Finding the Fourth Proportional to 7,979.39, 11,004.38 and 4,995.50

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Solution

The fourth proportional to 7,979.39, 11,004.38 and 4,995.50 is: 6,889.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.39 : 11,004.38 = 4,995.50 : x
  2. Step 2: Convert to fraction form
    7,979.39/11,004.38 = 4,995.50/x
  3. Step 3: Cross multiply
    7,979.39x = 11,004.38 × 4,995.50
  4. Step 4: Simplify right side
    7,979.39x = 54,972,300.29
  5. Step 5: Solve for x
    x = 54,972,300.29/7,979.39
  6. Step 6: Final answer
    x = 6,889.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.