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Finding the Fourth Proportional to 8,248, 11,379.54 and 4,662.40

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Solution

The fourth proportional to 8,248, 11,379.54 and 4,662.40 is: 6,432.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,248 : 11,379.54 = 4,662.40 : x
  2. Step 2: Convert to fraction form
    8,248/11,379.54 = 4,662.40/x
  3. Step 3: Cross multiply
    8,248x = 11,379.54 × 4,662.40
  4. Step 4: Simplify right side
    8,248x = 53,055,967.30
  5. Step 5: Solve for x
    x = 53,055,967.30/8,248
  6. Step 6: Final answer
    x = 6,432.59

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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.