Home / 13,299.21-19,948.82-8,356.59

Finding the Fourth Proportional to 13,299.21, 19,948.82 and 8,356.59

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Solution

The fourth proportional to 13,299.21, 19,948.82 and 8,356.59 is: 12,534.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.21 : 19,948.82 = 8,356.59 : x
  2. Step 2: Convert to fraction form
    13,299.21/19,948.82 = 8,356.59/x
  3. Step 3: Cross multiply
    13,299.21x = 19,948.82 × 8,356.59
  4. Step 4: Simplify right side
    13,299.21x = 166,704,067.94
  5. Step 5: Solve for x
    x = 166,704,067.94/13,299.21
  6. Step 6: Final answer
    x = 12,534.89

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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.