Home / 8,238.96-12,355.34-2,972.57

Finding the Fourth Proportional to 8,238.96, 12,355.34 and 2,972.57

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Solution

The fourth proportional to 8,238.96, 12,355.34 and 2,972.57 is: 4,457.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,238.96 : 12,355.34 = 2,972.57 : x
  2. Step 2: Convert to fraction form
    8,238.96/12,355.34 = 2,972.57/x
  3. Step 3: Cross multiply
    8,238.96x = 12,355.34 × 2,972.57
  4. Step 4: Simplify right side
    8,238.96x = 36,727,036.38
  5. Step 5: Solve for x
    x = 36,727,036.38/8,238.96
  6. Step 6: Final answer
    x = 4,457.73

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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.