Home / 13,131.32-19,696.97-8,717.22

Finding the Fourth Proportional to 13,131.32, 19,696.97 and 8,717.22

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Solution

The fourth proportional to 13,131.32, 19,696.97 and 8,717.22 is: 13,075.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,131.32 : 19,696.97 = 8,717.22 : x
  2. Step 2: Convert to fraction form
    13,131.32/19,696.97 = 8,717.22/x
  3. Step 3: Cross multiply
    13,131.32x = 19,696.97 × 8,717.22
  4. Step 4: Simplify right side
    13,131.32x = 171,702,842.62
  5. Step 5: Solve for x
    x = 171,702,842.62/13,131.32
  6. Step 6: Final answer
    x = 13,075.83

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Similar ratio
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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.