Home / 6,813.85-10,220.77-1,816.22

Finding the Fourth Proportional to 6,813.85, 10,220.77 and 1,816.22

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Solution

The fourth proportional to 6,813.85, 10,220.77 and 1,816.22 is: 2,724.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.85 : 10,220.77 = 1,816.22 : x
  2. Step 2: Convert to fraction form
    6,813.85/10,220.77 = 1,816.22/x
  3. Step 3: Cross multiply
    6,813.85x = 10,220.77 × 1,816.22
  4. Step 4: Simplify right side
    6,813.85x = 18,563,187.90
  5. Step 5: Solve for x
    x = 18,563,187.90/6,813.85
  6. Step 6: Final answer
    x = 2,724.33

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Double scale
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Similar ratio
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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.