Home / 8,685.17-13,027.76-2,111.31

Finding the Fourth Proportional to 8,685.17, 13,027.76 and 2,111.31

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Solution

The fourth proportional to 8,685.17, 13,027.76 and 2,111.31 is: 3,166.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.17 : 13,027.76 = 2,111.31 : x
  2. Step 2: Convert to fraction form
    8,685.17/13,027.76 = 2,111.31/x
  3. Step 3: Cross multiply
    8,685.17x = 13,027.76 × 2,111.31
  4. Step 4: Simplify right side
    8,685.17x = 27,505,629.41
  5. Step 5: Solve for x
    x = 27,505,629.41/8,685.17
  6. Step 6: Final answer
    x = 3,166.97

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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.