Home / 11,987.88-16,542.93-6,682.58

Finding the Fourth Proportional to 11,987.88, 16,542.93 and 6,682.58

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Solution

The fourth proportional to 11,987.88, 16,542.93 and 6,682.58 is: 9,221.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.88 : 16,542.93 = 6,682.58 : x
  2. Step 2: Convert to fraction form
    11,987.88/16,542.93 = 6,682.58/x
  3. Step 3: Cross multiply
    11,987.88x = 16,542.93 × 6,682.58
  4. Step 4: Simplify right side
    11,987.88x = 110,549,453.16
  5. Step 5: Solve for x
    x = 110,549,453.16/11,987.88
  6. Step 6: Final answer
    x = 9,221.77

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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.