Home / 10,896.30-16,351.14-8,661.96

Finding the Fourth Proportional to 10,896.30, 16,351.14 and 8,661.96

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Solution

The fourth proportional to 10,896.30, 16,351.14 and 8,661.96 is: 12,998.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,896.30 : 16,351.14 = 8,661.96 : x
  2. Step 2: Convert to fraction form
    10,896.30/16,351.14 = 8,661.96/x
  3. Step 3: Cross multiply
    10,896.30x = 16,351.14 × 8,661.96
  4. Step 4: Simplify right side
    10,896.30x = 141,632,920.63
  5. Step 5: Solve for x
    x = 141,632,920.63/10,896.30
  6. Step 6: Final answer
    x = 12,998.26

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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.