Home / 9,131.72-13,699.10-3,207.07

Finding the Fourth Proportional to 9,131.72, 13,699.10 and 3,207.07

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Solution

The fourth proportional to 9,131.72, 13,699.10 and 3,207.07 is: 4,811.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.72 : 13,699.10 = 3,207.07 : x
  2. Step 2: Convert to fraction form
    9,131.72/13,699.10 = 3,207.07/x
  3. Step 3: Cross multiply
    9,131.72x = 13,699.10 × 3,207.07
  4. Step 4: Simplify right side
    9,131.72x = 43,933,972.64
  5. Step 5: Solve for x
    x = 43,933,972.64/9,131.72
  6. Step 6: Final answer
    x = 4,811.14

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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.