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Finding the Fourth Proportional to 13,523.92, 18,662.88 and 7,556.62

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Solution

The fourth proportional to 13,523.92, 18,662.88 and 7,556.62 is: 10,428.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.92 : 18,662.88 = 7,556.62 : x
  2. Step 2: Convert to fraction form
    13,523.92/18,662.88 = 7,556.62/x
  3. Step 3: Cross multiply
    13,523.92x = 18,662.88 × 7,556.62
  4. Step 4: Simplify right side
    13,523.92x = 141,028,273.95
  5. Step 5: Solve for x
    x = 141,028,273.95/13,523.92
  6. Step 6: Final answer
    x = 10,428.06

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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.