Home / 8,749.58-13,129.73-3,487.12

Finding the Fourth Proportional to 8,749.58, 13,129.73 and 3,487.12

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Solution

The fourth proportional to 8,749.58, 13,129.73 and 3,487.12 is: 5,232.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.58 : 13,129.73 = 3,487.12 : x
  2. Step 2: Convert to fraction form
    8,749.58/13,129.73 = 3,487.12/x
  3. Step 3: Cross multiply
    8,749.58x = 13,129.73 × 3,487.12
  4. Step 4: Simplify right side
    8,749.58x = 45,784,919.97
  5. Step 5: Solve for x
    x = 45,784,919.97/8,749.58
  6. Step 6: Final answer
    x = 5,232.81

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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.