Home / 7,938.76-11,899.77-3,256.69

Finding the Fourth Proportional to 7,938.76, 11,899.77 and 3,256.69

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Solution

The fourth proportional to 7,938.76, 11,899.77 and 3,256.69 is: 4,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.76 : 11,899.77 = 3,256.69 : x
  2. Step 2: Convert to fraction form
    7,938.76/11,899.77 = 3,256.69/x
  3. Step 3: Cross multiply
    7,938.76x = 11,899.77 × 3,256.69
  4. Step 4: Simplify right side
    7,938.76x = 38,753,861.96
  5. Step 5: Solve for x
    x = 38,753,861.96/7,938.76
  6. Step 6: Final answer
    x = 4,881.60

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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.