Home / 13,117.26-19,668.68-8,961.96

Finding the Fourth Proportional to 13,117.26, 19,668.68 and 8,961.96

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Solution

The fourth proportional to 13,117.26, 19,668.68 and 8,961.96 is: 13,438.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117.26 : 19,668.68 = 8,961.96 : x
  2. Step 2: Convert to fraction form
    13,117.26/19,668.68 = 8,961.96/x
  3. Step 3: Cross multiply
    13,117.26x = 19,668.68 × 8,961.96
  4. Step 4: Simplify right side
    13,117.26x = 176,269,932.29
  5. Step 5: Solve for x
    x = 176,269,932.29/13,117.26
  6. Step 6: Final answer
    x = 13,438.01

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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.