Home / 11,221.81-15,486.20-6,186.23

Finding the Fourth Proportional to 11,221.81, 15,486.20 and 6,186.23

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Solution

The fourth proportional to 11,221.81, 15,486.20 and 6,186.23 is: 8,537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.81 : 15,486.20 = 6,186.23 : x
  2. Step 2: Convert to fraction form
    11,221.81/15,486.20 = 6,186.23/x
  3. Step 3: Cross multiply
    11,221.81x = 15,486.20 × 6,186.23
  4. Step 4: Simplify right side
    11,221.81x = 95,801,133.06
  5. Step 5: Solve for x
    x = 95,801,133.06/11,221.81
  6. Step 6: Final answer
    x = 8,537.05

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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.