Home / 8,150.60-11,231.70-5,786.12

Finding the Fourth Proportional to 8,150.60, 11,231.70 and 5,786.12

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Solution

The fourth proportional to 8,150.60, 11,231.70 and 5,786.12 is: 7,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,150.60 : 11,231.70 = 5,786.12 : x
  2. Step 2: Convert to fraction form
    8,150.60/11,231.70 = 5,786.12/x
  3. Step 3: Cross multiply
    8,150.60x = 11,231.70 × 5,786.12
  4. Step 4: Simplify right side
    8,150.60x = 64,987,964.00
  5. Step 5: Solve for x
    x = 64,987,964.00/8,150.60
  6. Step 6: Final answer
    x = 7,973.40

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Double scale
Find fourth proportional to 8,151.60, 11,233.08 and 5,787.12
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.