Home / 8,189.21-12,260.70-7,926.77

Finding the Fourth Proportional to 8,189.21, 12,260.70 and 7,926.77

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Solution

The fourth proportional to 8,189.21, 12,260.70 and 7,926.77 is: 11,867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.21 : 12,260.70 = 7,926.77 : x
  2. Step 2: Convert to fraction form
    8,189.21/12,260.70 = 7,926.77/x
  3. Step 3: Cross multiply
    8,189.21x = 12,260.70 × 7,926.77
  4. Step 4: Simplify right side
    8,189.21x = 97,187,687.64
  5. Step 5: Solve for x
    x = 97,187,687.64/8,189.21
  6. Step 6: Final answer
    x = 11,867.78

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1.5x scale

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.