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Finding the Fourth Proportional to 13,110, 18,080.01 and 8,632.14

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Solution

The fourth proportional to 13,110, 18,080.01 and 8,632.14 is: 11,904.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110 : 18,080.01 = 8,632.14 : x
  2. Step 2: Convert to fraction form
    13,110/18,080.01 = 8,632.14/x
  3. Step 3: Cross multiply
    13,110x = 18,080.01 × 8,632.14
  4. Step 4: Simplify right side
    13,110x = 156,069,177.52
  5. Step 5: Solve for x
    x = 156,069,177.52/13,110
  6. Step 6: Final answer
    x = 11,904.59

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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.