Home / 8,686.44-13,029.47-2,112.66

Finding the Fourth Proportional to 8,686.44, 13,029.47 and 2,112.66

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Solution

The fourth proportional to 8,686.44, 13,029.47 and 2,112.66 is: 3,168.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.44 : 13,029.47 = 2,112.66 : x
  2. Step 2: Convert to fraction form
    8,686.44/13,029.47 = 2,112.66/x
  3. Step 3: Cross multiply
    8,686.44x = 13,029.47 × 2,112.66
  4. Step 4: Simplify right side
    8,686.44x = 27,526,840.09
  5. Step 5: Solve for x
    x = 27,526,840.09/8,686.44
  6. Step 6: Final answer
    x = 3,168.94

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1.5x scale

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.