Home / 7,979.28-11,011.32-4,836.48

Finding the Fourth Proportional to 7,979.28, 11,011.32 and 4,836.48

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Solution

The fourth proportional to 7,979.28, 11,011.32 and 4,836.48 is: 6,674.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.28 : 11,011.32 = 4,836.48 : x
  2. Step 2: Convert to fraction form
    7,979.28/11,011.32 = 4,836.48/x
  3. Step 3: Cross multiply
    7,979.28x = 11,011.32 × 4,836.48
  4. Step 4: Simplify right side
    7,979.28x = 53,256,028.95
  5. Step 5: Solve for x
    x = 53,256,028.95/7,979.28
  6. Step 6: Final answer
    x = 6,674.29

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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.