Home / 6,815.68-10,213.93-5,422.82

Finding the Fourth Proportional to 6,815.68, 10,213.93 and 5,422.82

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Solution

The fourth proportional to 6,815.68, 10,213.93 and 5,422.82 is: 8,126.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.68 : 10,213.93 = 5,422.82 : x
  2. Step 2: Convert to fraction form
    6,815.68/10,213.93 = 5,422.82/x
  3. Step 3: Cross multiply
    6,815.68x = 10,213.93 × 5,422.82
  4. Step 4: Simplify right side
    6,815.68x = 55,388,259.59
  5. Step 5: Solve for x
    x = 55,388,259.59/6,815.68
  6. Step 6: Final answer
    x = 8,126.60

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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.