Home / 8,682.09-13,005.72-3,995.57

Finding the Fourth Proportional to 8,682.09, 13,005.72 and 3,995.57

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Solution

The fourth proportional to 8,682.09, 13,005.72 and 3,995.57 is: 5,985.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.09 : 13,005.72 = 3,995.57 : x
  2. Step 2: Convert to fraction form
    8,682.09/13,005.72 = 3,995.57/x
  3. Step 3: Cross multiply
    8,682.09x = 13,005.72 × 3,995.57
  4. Step 4: Simplify right side
    8,682.09x = 51,965,264.66
  5. Step 5: Solve for x
    x = 51,965,264.66/8,682.09
  6. Step 6: Final answer
    x = 5,985.34

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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.