Home / 11,112.32-15,334.40-6,144

Finding the Fourth Proportional to 11,112.32, 15,334.40 and 6,144

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Solution

The fourth proportional to 11,112.32, 15,334.40 and 6,144 is: 8,478.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.32 : 15,334.40 = 6,144 : x
  2. Step 2: Convert to fraction form
    11,112.32/15,334.40 = 6,144/x
  3. Step 3: Cross multiply
    11,112.32x = 15,334.40 × 6,144
  4. Step 4: Simplify right side
    11,112.32x = 94,214,553.60
  5. Step 5: Solve for x
    x = 94,214,553.60/11,112.32
  6. Step 6: Final answer
    x = 8,478.39

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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.