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Finding the Fourth Proportional to 15,284.96, 21,092.81 and 9,314.45

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Solution

The fourth proportional to 15,284.96, 21,092.81 and 9,314.45 is: 12,853.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,284.96 : 21,092.81 = 9,314.45 : x
  2. Step 2: Convert to fraction form
    15,284.96/21,092.81 = 9,314.45/x
  3. Step 3: Cross multiply
    15,284.96x = 21,092.81 × 9,314.45
  4. Step 4: Simplify right side
    15,284.96x = 196,468,048.40
  5. Step 5: Solve for x
    x = 196,468,048.40/15,284.96
  6. Step 6: Final answer
    x = 12,853.68

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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.