Home / 11,987.84-16,542.88-6,682.56

Finding the Fourth Proportional to 11,987.84, 16,542.88 and 6,682.56

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Solution

The fourth proportional to 11,987.84, 16,542.88 and 6,682.56 is: 9,221.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.84 : 16,542.88 = 6,682.56 : x
  2. Step 2: Convert to fraction form
    11,987.84/16,542.88 = 6,682.56/x
  3. Step 3: Cross multiply
    11,987.84x = 16,542.88 × 6,682.56
  4. Step 4: Simplify right side
    11,987.84x = 110,548,788.17
  5. Step 5: Solve for x
    x = 110,548,788.17/11,987.84
  6. Step 6: Final answer
    x = 9,221.74

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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.