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Finding the Fourth Proportional to 8,908, 12,293.07 and 5,371.36

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Solution

The fourth proportional to 8,908, 12,293.07 and 5,371.36 is: 7,412.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908 : 12,293.07 = 5,371.36 : x
  2. Step 2: Convert to fraction form
    8,908/12,293.07 = 5,371.36/x
  3. Step 3: Cross multiply
    8,908x = 12,293.07 × 5,371.36
  4. Step 4: Simplify right side
    8,908x = 66,030,504.48
  5. Step 5: Solve for x
    x = 66,030,504.48/8,908
  6. Step 6: Final answer
    x = 7,412.49

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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.