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Finding the Fourth Proportional to 8,154.56, 11,253.24 and 4,428.56

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Solution

The fourth proportional to 8,154.56, 11,253.24 and 4,428.56 is: 6,111.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.56 : 11,253.24 = 4,428.56 : x
  2. Step 2: Convert to fraction form
    8,154.56/11,253.24 = 4,428.56/x
  3. Step 3: Cross multiply
    8,154.56x = 11,253.24 × 4,428.56
  4. Step 4: Simplify right side
    8,154.56x = 49,835,648.53
  5. Step 5: Solve for x
    x = 49,835,648.53/8,154.56
  6. Step 6: Final answer
    x = 6,111.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.