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Finding the Fourth Proportional to 11,224, 15,489 and 6,188.42

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Solution

The fourth proportional to 11,224, 15,489 and 6,188.42 is: 8,539.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,224 : 15,489 = 6,188.42 : x
  2. Step 2: Convert to fraction form
    11,224/15,489 = 6,188.42/x
  3. Step 3: Cross multiply
    11,224x = 15,489 × 6,188.42
  4. Step 4: Simplify right side
    11,224x = 95,852,437.38
  5. Step 5: Solve for x
    x = 95,852,437.38/11,224
  6. Step 6: Final answer
    x = 8,539.95

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1.5x scale

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.