Home / 11,717.19-16,170.15-6,680.60

Finding the Fourth Proportional to 11,717.19, 16,170.15 and 6,680.60

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Solution

The fourth proportional to 11,717.19, 16,170.15 and 6,680.60 is: 9,219.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,717.19 : 16,170.15 = 6,680.60 : x
  2. Step 2: Convert to fraction form
    11,717.19/16,170.15 = 6,680.60/x
  3. Step 3: Cross multiply
    11,717.19x = 16,170.15 × 6,680.60
  4. Step 4: Simplify right side
    11,717.19x = 108,026,304.09
  5. Step 5: Solve for x
    x = 108,026,304.09/11,717.19
  6. Step 6: Final answer
    x = 9,219.47

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Half scale
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Double scale
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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.