Home / 12,191.13-16,823.75-6,886.29

Finding the Fourth Proportional to 12,191.13, 16,823.75 and 6,886.29

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Solution

The fourth proportional to 12,191.13, 16,823.75 and 6,886.29 is: 9,503.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.13 : 16,823.75 = 6,886.29 : x
  2. Step 2: Convert to fraction form
    12,191.13/16,823.75 = 6,886.29/x
  3. Step 3: Cross multiply
    12,191.13x = 16,823.75 × 6,886.29
  4. Step 4: Simplify right side
    12,191.13x = 115,853,221.39
  5. Step 5: Solve for x
    x = 115,853,221.39/12,191.13
  6. Step 6: Final answer
    x = 9,503.07

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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.