Home / 8,198.42-11,317.19-5,688.77

Finding the Fourth Proportional to 8,198.42, 11,317.19 and 5,688.77

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Solution

The fourth proportional to 8,198.42, 11,317.19 and 5,688.77 is: 7,852.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198.42 : 11,317.19 = 5,688.77 : x
  2. Step 2: Convert to fraction form
    8,198.42/11,317.19 = 5,688.77/x
  3. Step 3: Cross multiply
    8,198.42x = 11,317.19 × 5,688.77
  4. Step 4: Simplify right side
    8,198.42x = 64,380,805.93
  5. Step 5: Solve for x
    x = 64,380,805.93/8,198.42
  6. Step 6: Final answer
    x = 7,852.84

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Half scale
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Double scale
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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.