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Finding the Fourth Proportional to 11,727.78, 17,579.48 and 7,335.14

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Solution

The fourth proportional to 11,727.78, 17,579.48 and 7,335.14 is: 10,995.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,727.78 : 17,579.48 = 7,335.14 : x
  2. Step 2: Convert to fraction form
    11,727.78/17,579.48 = 7,335.14/x
  3. Step 3: Cross multiply
    11,727.78x = 17,579.48 × 7,335.14
  4. Step 4: Simplify right side
    11,727.78x = 128,947,946.93
  5. Step 5: Solve for x
    x = 128,947,946.93/11,727.78
  6. Step 6: Final answer
    x = 10,995.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.