Home / 8,723.86-13,086.09-3,459.87

Finding the Fourth Proportional to 8,723.86, 13,086.09 and 3,459.87

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Solution

The fourth proportional to 8,723.86, 13,086.09 and 3,459.87 is: 5,189.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.86 : 13,086.09 = 3,459.87 : x
  2. Step 2: Convert to fraction form
    8,723.86/13,086.09 = 3,459.87/x
  3. Step 3: Cross multiply
    8,723.86x = 13,086.09 × 3,459.87
  4. Step 4: Simplify right side
    8,723.86x = 45,276,170.21
  5. Step 5: Solve for x
    x = 45,276,170.21/8,723.86
  6. Step 6: Final answer
    x = 5,189.92

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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.