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Finding the Fourth Proportional to 11,396.26, 15,726.72 and 6,679.63

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Solution

The fourth proportional to 11,396.26, 15,726.72 and 6,679.63 is: 9,217.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,396.26 : 15,726.72 = 6,679.63 : x
  2. Step 2: Convert to fraction form
    11,396.26/15,726.72 = 6,679.63/x
  3. Step 3: Cross multiply
    11,396.26x = 15,726.72 × 6,679.63
  4. Step 4: Simplify right side
    11,396.26x = 105,048,670.71
  5. Step 5: Solve for x
    x = 105,048,670.71/11,396.26
  6. Step 6: Final answer
    x = 9,217.82

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.