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Finding the Fourth Proportional to 15,366.61, 21,199.47 and 9,396.37

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Solution

The fourth proportional to 15,366.61, 21,199.47 and 9,396.37 is: 12,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,366.61 : 21,199.47 = 9,396.37 : x
  2. Step 2: Convert to fraction form
    15,366.61/21,199.47 = 9,396.37/x
  3. Step 3: Cross multiply
    15,366.61x = 21,199.47 × 9,396.37
  4. Step 4: Simplify right side
    15,366.61x = 199,198,063.92
  5. Step 5: Solve for x
    x = 199,198,063.92/15,366.61
  6. Step 6: Final answer
    x = 12,963.05

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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.