Home / 8,109.86-11,190.77-5,986.52

Finding the Fourth Proportional to 8,109.86, 11,190.77 and 5,986.52

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Solution

The fourth proportional to 8,109.86, 11,190.77 and 5,986.52 is: 8,260.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.86 : 11,190.77 = 5,986.52 : x
  2. Step 2: Convert to fraction form
    8,109.86/11,190.77 = 5,986.52/x
  3. Step 3: Cross multiply
    8,109.86x = 11,190.77 × 5,986.52
  4. Step 4: Simplify right side
    8,109.86x = 66,993,682.53
  5. Step 5: Solve for x
    x = 66,993,682.53/8,109.86
  6. Step 6: Final answer
    x = 8,260.77

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.