Home / 7,816.69-11,720.78-2,818.38

Finding the Fourth Proportional to 7,816.69, 11,720.78 and 2,818.38

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Solution

The fourth proportional to 7,816.69, 11,720.78 and 2,818.38 is: 4,226.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.69 : 11,720.78 = 2,818.38 : x
  2. Step 2: Convert to fraction form
    7,816.69/11,720.78 = 2,818.38/x
  3. Step 3: Cross multiply
    7,816.69x = 11,720.78 × 2,818.38
  4. Step 4: Simplify right side
    7,816.69x = 33,033,611.94
  5. Step 5: Solve for x
    x = 33,033,611.94/7,816.69
  6. Step 6: Final answer
    x = 4,226.04

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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.