Home / 13,933.12-19,228.32-8,344

Finding the Fourth Proportional to 13,933.12, 19,228.32 and 8,344

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Solution

The fourth proportional to 13,933.12, 19,228.32 and 8,344 is: 11,515.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.12 : 19,228.32 = 8,344 : x
  2. Step 2: Convert to fraction form
    13,933.12/19,228.32 = 8,344/x
  3. Step 3: Cross multiply
    13,933.12x = 19,228.32 × 8,344
  4. Step 4: Simplify right side
    13,933.12x = 160,441,102.08
  5. Step 5: Solve for x
    x = 160,441,102.08/13,933.12
  6. Step 6: Final answer
    x = 11,515.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.