Home / 8,685.06-13,027.40-2,111.28

Finding the Fourth Proportional to 8,685.06, 13,027.40 and 2,111.28

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Solution

The fourth proportional to 8,685.06, 13,027.40 and 2,111.28 is: 3,166.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.06 : 13,027.40 = 2,111.28 : x
  2. Step 2: Convert to fraction form
    8,685.06/13,027.40 = 2,111.28/x
  3. Step 3: Cross multiply
    8,685.06x = 13,027.40 × 2,111.28
  4. Step 4: Simplify right side
    8,685.06x = 27,504,489.07
  5. Step 5: Solve for x
    x = 27,504,489.07/8,685.06
  6. Step 6: Final answer
    x = 3,166.87

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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.