Home / 11,971.17-16,517.81-6,664.97

Finding the Fourth Proportional to 11,971.17, 16,517.81 and 6,664.97

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Solution

The fourth proportional to 11,971.17, 16,517.81 and 6,664.97 is: 9,196.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971.17 : 16,517.81 = 6,664.97 : x
  2. Step 2: Convert to fraction form
    11,971.17/16,517.81 = 6,664.97/x
  3. Step 3: Cross multiply
    11,971.17x = 16,517.81 × 6,664.97
  4. Step 4: Simplify right side
    11,971.17x = 110,090,592.20
  5. Step 5: Solve for x
    x = 110,090,592.20/11,971.17
  6. Step 6: Final answer
    x = 9,196.31

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1.5x scale

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.