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Finding the Fourth Proportional to 11,652, 16,079.76 and 6,685.60

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Solution

The fourth proportional to 11,652, 16,079.76 and 6,685.60 is: 9,226.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,652 : 16,079.76 = 6,685.60 : x
  2. Step 2: Convert to fraction form
    11,652/16,079.76 = 6,685.60/x
  3. Step 3: Cross multiply
    11,652x = 16,079.76 × 6,685.60
  4. Step 4: Simplify right side
    11,652x = 107,502,843.46
  5. Step 5: Solve for x
    x = 107,502,843.46/11,652
  6. Step 6: Final answer
    x = 9,226.13

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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.