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Finding the Fourth Proportional to 7,998.70, 12,001.16 and 3,317.52

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Solution

The fourth proportional to 7,998.70, 12,001.16 and 3,317.52 is: 4,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.70 : 12,001.16 = 3,317.52 : x
  2. Step 2: Convert to fraction form
    7,998.70/12,001.16 = 3,317.52/x
  3. Step 3: Cross multiply
    7,998.70x = 12,001.16 × 3,317.52
  4. Step 4: Simplify right side
    7,998.70x = 39,814,090.99
  5. Step 5: Solve for x
    x = 39,814,090.99/7,998.70
  6. Step 6: Final answer
    x = 4,977.57

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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.