Home / 11,986.80-16,536.60-8,254.32

Finding the Fourth Proportional to 11,986.80, 16,536.60 and 8,254.32

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Solution

The fourth proportional to 11,986.80, 16,536.60 and 8,254.32 is: 11,387.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.80 : 16,536.60 = 8,254.32 : x
  2. Step 2: Convert to fraction form
    11,986.80/16,536.60 = 8,254.32/x
  3. Step 3: Cross multiply
    11,986.80x = 16,536.60 × 8,254.32
  4. Step 4: Simplify right side
    11,986.80x = 136,498,388.11
  5. Step 5: Solve for x
    x = 136,498,388.11/11,986.80
  6. Step 6: Final answer
    x = 11,387.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.