Home / 7,972.05-11,961.69-5,636.82

Finding the Fourth Proportional to 7,972.05, 11,961.69 and 5,636.82

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Solution

The fourth proportional to 7,972.05, 11,961.69 and 5,636.82 is: 8,457.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.05 : 11,961.69 = 5,636.82 : x
  2. Step 2: Convert to fraction form
    7,972.05/11,961.69 = 5,636.82/x
  3. Step 3: Cross multiply
    7,972.05x = 11,961.69 × 5,636.82
  4. Step 4: Simplify right side
    7,972.05x = 67,425,893.43
  5. Step 5: Solve for x
    x = 67,425,893.43/7,972.05
  6. Step 6: Final answer
    x = 8,457.79

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1.5x scale

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.