Home / 8,687.92-13,033.14-4,989.52

Finding the Fourth Proportional to 8,687.92, 13,033.14 and 4,989.52

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Solution

The fourth proportional to 8,687.92, 13,033.14 and 4,989.52 is: 7,485.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.92 : 13,033.14 = 4,989.52 : x
  2. Step 2: Convert to fraction form
    8,687.92/13,033.14 = 4,989.52/x
  3. Step 3: Cross multiply
    8,687.92x = 13,033.14 × 4,989.52
  4. Step 4: Simplify right side
    8,687.92x = 65,029,112.69
  5. Step 5: Solve for x
    x = 65,029,112.69/8,687.92
  6. Step 6: Final answer
    x = 7,485.00

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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.