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Finding the Fourth Proportional to 10,487.54, 15,731.31 and 2,696.36

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Solution

The fourth proportional to 10,487.54, 15,731.31 and 2,696.36 is: 4,044.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.54 : 15,731.31 = 2,696.36 : x
  2. Step 2: Convert to fraction form
    10,487.54/15,731.31 = 2,696.36/x
  3. Step 3: Cross multiply
    10,487.54x = 15,731.31 × 2,696.36
  4. Step 4: Simplify right side
    10,487.54x = 42,417,275.03
  5. Step 5: Solve for x
    x = 42,417,275.03/10,487.54
  6. Step 6: Final answer
    x = 4,044.54

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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.