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Finding the Fourth Proportional to 8,805.72, 13,210.31 and 3,259.11

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Solution

The fourth proportional to 8,805.72, 13,210.31 and 3,259.11 is: 4,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.72 : 13,210.31 = 3,259.11 : x
  2. Step 2: Convert to fraction form
    8,805.72/13,210.31 = 3,259.11/x
  3. Step 3: Cross multiply
    8,805.72x = 13,210.31 × 3,259.11
  4. Step 4: Simplify right side
    8,805.72x = 43,053,831.29
  5. Step 5: Solve for x
    x = 43,053,831.29/8,805.72
  6. Step 6: Final answer
    x = 4,889.30

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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.