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Finding the Fourth Proportional to 8,272.69, 12,409.13 and 2,726.01

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Solution

The fourth proportional to 8,272.69, 12,409.13 and 2,726.01 is: 4,089.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272.69 : 12,409.13 = 2,726.01 : x
  2. Step 2: Convert to fraction form
    8,272.69/12,409.13 = 2,726.01/x
  3. Step 3: Cross multiply
    8,272.69x = 12,409.13 × 2,726.01
  4. Step 4: Simplify right side
    8,272.69x = 33,827,419.29
  5. Step 5: Solve for x
    x = 33,827,419.29/8,272.69
  6. Step 6: Final answer
    x = 4,089.05

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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.