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Finding the Fourth Proportional to 18,293.28, 27,439.29 and 7,756.52

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Solution

The fourth proportional to 18,293.28, 27,439.29 and 7,756.52 is: 11,634.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.28 : 27,439.29 = 7,756.52 : x
  2. Step 2: Convert to fraction form
    18,293.28/27,439.29 = 7,756.52/x
  3. Step 3: Cross multiply
    18,293.28x = 27,439.29 × 7,756.52
  4. Step 4: Simplify right side
    18,293.28x = 212,833,264.47
  5. Step 5: Solve for x
    x = 212,833,264.47/18,293.28
  6. Step 6: Final answer
    x = 11,634.51

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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.