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Finding the Fourth Proportional to 7,636.61, 11,455.11 and 2,442.48

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Solution

The fourth proportional to 7,636.61, 11,455.11 and 2,442.48 is: 3,663.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,636.61 : 11,455.11 = 2,442.48 : x
  2. Step 2: Convert to fraction form
    7,636.61/11,455.11 = 2,442.48/x
  3. Step 3: Cross multiply
    7,636.61x = 11,455.11 × 2,442.48
  4. Step 4: Simplify right side
    7,636.61x = 27,978,877.07
  5. Step 5: Solve for x
    x = 27,978,877.07/7,636.61
  6. Step 6: Final answer
    x = 3,663.78

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1.5x scale

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.