Home / 11,109.36-15,331.56-6,393.52

Finding the Fourth Proportional to 11,109.36, 15,331.56 and 6,393.52

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Solution

The fourth proportional to 11,109.36, 15,331.56 and 6,393.52 is: 8,823.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.36 : 15,331.56 = 6,393.52 : x
  2. Step 2: Convert to fraction form
    11,109.36/15,331.56 = 6,393.52/x
  3. Step 3: Cross multiply
    11,109.36x = 15,331.56 × 6,393.52
  4. Step 4: Simplify right side
    11,109.36x = 98,022,635.49
  5. Step 5: Solve for x
    x = 98,022,635.49/11,109.36
  6. Step 6: Final answer
    x = 8,823.43

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