Home / 11,179.82-15,428.36-6,144.50

Finding the Fourth Proportional to 11,179.82, 15,428.36 and 6,144.50

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Solution

The fourth proportional to 11,179.82, 15,428.36 and 6,144.50 is: 8,479.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.82 : 15,428.36 = 6,144.50 : x
  2. Step 2: Convert to fraction form
    11,179.82/15,428.36 = 6,144.50/x
  3. Step 3: Cross multiply
    11,179.82x = 15,428.36 × 6,144.50
  4. Step 4: Simplify right side
    11,179.82x = 94,799,558.02
  5. Step 5: Solve for x
    x = 94,799,558.02/11,179.82
  6. Step 6: Final answer
    x = 8,479.52

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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.