Home / 8,749.94-13,127.56-3,126.88

Finding the Fourth Proportional to 8,749.94, 13,127.56 and 3,126.88

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Solution

The fourth proportional to 8,749.94, 13,127.56 and 3,126.88 is: 4,691.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.94 : 13,127.56 = 3,126.88 : x
  2. Step 2: Convert to fraction form
    8,749.94/13,127.56 = 3,126.88/x
  3. Step 3: Cross multiply
    8,749.94x = 13,127.56 × 3,126.88
  4. Step 4: Simplify right side
    8,749.94x = 41,048,239.18
  5. Step 5: Solve for x
    x = 41,048,239.18/8,749.94
  6. Step 6: Final answer
    x = 4,691.26

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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.