Home / 13,326.66-20,012.68-12,769.38

Finding the Fourth Proportional to 13,326.66, 20,012.68 and 12,769.38

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Solution

The fourth proportional to 13,326.66, 20,012.68 and 12,769.38 is: 19,175.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.66 : 20,012.68 = 12,769.38 : x
  2. Step 2: Convert to fraction form
    13,326.66/20,012.68 = 12,769.38/x
  3. Step 3: Cross multiply
    13,326.66x = 20,012.68 × 12,769.38
  4. Step 4: Simplify right side
    13,326.66x = 255,549,515.74
  5. Step 5: Solve for x
    x = 255,549,515.74/13,326.66
  6. Step 6: Final answer
    x = 19,175.81

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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.