Home / 8,238.64-12,355.39-2,972.96

Finding the Fourth Proportional to 8,238.64, 12,355.39 and 2,972.96

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Solution

The fourth proportional to 8,238.64, 12,355.39 and 2,972.96 is: 4,458.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238.64 : 12,355.39 = 2,972.96 : x
  2. Step 2: Convert to fraction form
    8,238.64/12,355.39 = 2,972.96/x
  3. Step 3: Cross multiply
    8,238.64x = 12,355.39 × 2,972.96
  4. Step 4: Simplify right side
    8,238.64x = 36,732,112.71
  5. Step 5: Solve for x
    x = 36,732,112.71/8,238.64
  6. Step 6: Final answer
    x = 4,458.52

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Why These Related Problems?

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