Home / 12,191.74-16,824.68-6,886.44

Finding the Fourth Proportional to 12,191.74, 16,824.68 and 6,886.44

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Solution

The fourth proportional to 12,191.74, 16,824.68 and 6,886.44 is: 9,503.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.74 : 16,824.68 = 6,886.44 : x
  2. Step 2: Convert to fraction form
    12,191.74/16,824.68 = 6,886.44/x
  3. Step 3: Cross multiply
    12,191.74x = 16,824.68 × 6,886.44
  4. Step 4: Simplify right side
    12,191.74x = 115,862,149.34
  5. Step 5: Solve for x
    x = 115,862,149.34/12,191.74
  6. Step 6: Final answer
    x = 9,503.33

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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.