Home / 12,191.92-16,824.76-6,886.64

Finding the Fourth Proportional to 12,191.92, 16,824.76 and 6,886.64

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Solution

The fourth proportional to 12,191.92, 16,824.76 and 6,886.64 is: 9,503.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.92 : 16,824.76 = 6,886.64 : x
  2. Step 2: Convert to fraction form
    12,191.92/16,824.76 = 6,886.64/x
  3. Step 3: Cross multiply
    12,191.92x = 16,824.76 × 6,886.64
  4. Step 4: Simplify right side
    12,191.92x = 115,866,065.21
  5. Step 5: Solve for x
    x = 115,866,065.21/12,191.92
  6. Step 6: Final answer
    x = 9,503.51

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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.