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Finding the Fourth Proportional to 8,358.66, 11,536.65 and 4,821.39

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Solution

The fourth proportional to 8,358.66, 11,536.65 and 4,821.39 is: 6,654.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.66 : 11,536.65 = 4,821.39 : x
  2. Step 2: Convert to fraction form
    8,358.66/11,536.65 = 4,821.39/x
  3. Step 3: Cross multiply
    8,358.66x = 11,536.65 × 4,821.39
  4. Step 4: Simplify right side
    8,358.66x = 55,622,688.94
  5. Step 5: Solve for x
    x = 55,622,688.94/8,358.66
  6. Step 6: Final answer
    x = 6,654.50

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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.