Home / 7,979.68-11,015.82-4,997.14

Finding the Fourth Proportional to 7,979.68, 11,015.82 and 4,997.14

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Solution

The fourth proportional to 7,979.68, 11,015.82 and 4,997.14 is: 6,898.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.68 : 11,015.82 = 4,997.14 : x
  2. Step 2: Convert to fraction form
    7,979.68/11,015.82 = 4,997.14/x
  3. Step 3: Cross multiply
    7,979.68x = 11,015.82 × 4,997.14
  4. Step 4: Simplify right side
    7,979.68x = 55,047,594.75
  5. Step 5: Solve for x
    x = 55,047,594.75/7,979.68
  6. Step 6: Final answer
    x = 6,898.47

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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.