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Finding the Fourth Proportional to 8,679.99, 13,012.02 and 3,132.03

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Solution

The fourth proportional to 8,679.99, 13,012.02 and 3,132.03 is: 4,695.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.99 : 13,012.02 = 3,132.03 : x
  2. Step 2: Convert to fraction form
    8,679.99/13,012.02 = 3,132.03/x
  3. Step 3: Cross multiply
    8,679.99x = 13,012.02 × 3,132.03
  4. Step 4: Simplify right side
    8,679.99x = 40,754,037.00
  5. Step 5: Solve for x
    x = 40,754,037.00/8,679.99
  6. Step 6: Final answer
    x = 4,695.17

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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.