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Finding the Fourth Proportional to 8,586, 11,848.68 and 5,229.36

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Solution

The fourth proportional to 8,586, 11,848.68 and 5,229.36 is: 7,216.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586 : 11,848.68 = 5,229.36 : x
  2. Step 2: Convert to fraction form
    8,586/11,848.68 = 5,229.36/x
  3. Step 3: Cross multiply
    8,586x = 11,848.68 × 5,229.36
  4. Step 4: Simplify right side
    8,586x = 61,961,013.24
  5. Step 5: Solve for x
    x = 61,961,013.24/8,586
  6. Step 6: Final answer
    x = 7,216.52

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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.