Home / 6,815.20-10,233.60-4,979.20

Finding the Fourth Proportional to 6,815.20, 10,233.60 and 4,979.20

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Solution

The fourth proportional to 6,815.20, 10,233.60 and 4,979.20 is: 7,476.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.20 : 10,233.60 = 4,979.20 : x
  2. Step 2: Convert to fraction form
    6,815.20/10,233.60 = 4,979.20/x
  3. Step 3: Cross multiply
    6,815.20x = 10,233.60 × 4,979.20
  4. Step 4: Simplify right side
    6,815.20x = 50,955,141.12
  5. Step 5: Solve for x
    x = 50,955,141.12/6,815.20
  6. Step 6: Final answer
    x = 7,476.69

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1.5x scale

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.