Home / 11,335.12-17,001.72-3,938.32

Finding the Fourth Proportional to 11,335.12, 17,001.72 and 3,938.32

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Solution

The fourth proportional to 11,335.12, 17,001.72 and 3,938.32 is: 5,907.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,335.12 : 17,001.72 = 3,938.32 : x
  2. Step 2: Convert to fraction form
    11,335.12/17,001.72 = 3,938.32/x
  3. Step 3: Cross multiply
    11,335.12x = 17,001.72 × 3,938.32
  4. Step 4: Simplify right side
    11,335.12x = 66,958,213.91
  5. Step 5: Solve for x
    x = 66,958,213.91/11,335.12
  6. Step 6: Final answer
    x = 5,907.15

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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.