Home / 8,207.81-12,313.66-2,661.16

Finding the Fourth Proportional to 8,207.81, 12,313.66 and 2,661.16

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Solution

The fourth proportional to 8,207.81, 12,313.66 and 2,661.16 is: 3,992.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.81 : 12,313.66 = 2,661.16 : x
  2. Step 2: Convert to fraction form
    8,207.81/12,313.66 = 2,661.16/x
  3. Step 3: Cross multiply
    8,207.81x = 12,313.66 × 2,661.16
  4. Step 4: Simplify right side
    8,207.81x = 32,768,619.45
  5. Step 5: Solve for x
    x = 32,768,619.45/8,207.81
  6. Step 6: Final answer
    x = 3,992.37

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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.