Home / 9,129.36-13,693.98-2,203.86

Finding the Fourth Proportional to 9,129.36, 13,693.98 and 2,203.86

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Solution

The fourth proportional to 9,129.36, 13,693.98 and 2,203.86 is: 3,305.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.36 : 13,693.98 = 2,203.86 : x
  2. Step 2: Convert to fraction form
    9,129.36/13,693.98 = 2,203.86/x
  3. Step 3: Cross multiply
    9,129.36x = 13,693.98 × 2,203.86
  4. Step 4: Simplify right side
    9,129.36x = 30,179,614.76
  5. Step 5: Solve for x
    x = 30,179,614.76/9,129.36
  6. Step 6: Final answer
    x = 3,305.78

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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.