Home / 15,326.42-21,163.92-9,671.24

Finding the Fourth Proportional to 15,326.42, 21,163.92 and 9,671.24

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Solution

The fourth proportional to 15,326.42, 21,163.92 and 9,671.24 is: 13,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,326.42 : 21,163.92 = 9,671.24 : x
  2. Step 2: Convert to fraction form
    15,326.42/21,163.92 = 9,671.24/x
  3. Step 3: Cross multiply
    15,326.42x = 21,163.92 × 9,671.24
  4. Step 4: Simplify right side
    15,326.42x = 204,681,349.66
  5. Step 5: Solve for x
    x = 204,681,349.66/15,326.42
  6. Step 6: Final answer
    x = 13,354.80

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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.