Home / 10,961.88-16,456.67-8,768.05

Finding the Fourth Proportional to 10,961.88, 16,456.67 and 8,768.05

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Solution

The fourth proportional to 10,961.88, 16,456.67 and 8,768.05 is: 13,163.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.88 : 16,456.67 = 8,768.05 : x
  2. Step 2: Convert to fraction form
    10,961.88/16,456.67 = 8,768.05/x
  3. Step 3: Cross multiply
    10,961.88x = 16,456.67 × 8,768.05
  4. Step 4: Simplify right side
    10,961.88x = 144,292,853.29
  5. Step 5: Solve for x
    x = 144,292,853.29/10,961.88
  6. Step 6: Final answer
    x = 13,163.15

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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.