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Finding the Fourth Proportional to 10,212.84, 15,304.41 and 5,528.88

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Solution

The fourth proportional to 10,212.84, 15,304.41 and 5,528.88 is: 8,285.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,212.84 : 15,304.41 = 5,528.88 : x
  2. Step 2: Convert to fraction form
    10,212.84/15,304.41 = 5,528.88/x
  3. Step 3: Cross multiply
    10,212.84x = 15,304.41 × 5,528.88
  4. Step 4: Simplify right side
    10,212.84x = 84,616,246.36
  5. Step 5: Solve for x
    x = 84,616,246.36/10,212.84
  6. Step 6: Final answer
    x = 8,285.28

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.