Home / 7,913.99-11,872.29-3,531.28

Finding the Fourth Proportional to 7,913.99, 11,872.29 and 3,531.28

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Solution

The fourth proportional to 7,913.99, 11,872.29 and 3,531.28 is: 5,297.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.99 : 11,872.29 = 3,531.28 : x
  2. Step 2: Convert to fraction form
    7,913.99/11,872.29 = 3,531.28/x
  3. Step 3: Cross multiply
    7,913.99x = 11,872.29 × 3,531.28
  4. Step 4: Simplify right side
    7,913.99x = 41,924,380.23
  5. Step 5: Solve for x
    x = 41,924,380.23/7,913.99
  6. Step 6: Final answer
    x = 5,297.50

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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.