Home / 11,221.67-15,486.69-6,186.51

Finding the Fourth Proportional to 11,221.67, 15,486.69 and 6,186.51

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Solution

The fourth proportional to 11,221.67, 15,486.69 and 6,186.51 is: 8,537.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.67 : 15,486.69 = 6,186.51 : x
  2. Step 2: Convert to fraction form
    11,221.67/15,486.69 = 6,186.51/x
  3. Step 3: Cross multiply
    11,221.67x = 15,486.69 × 6,186.51
  4. Step 4: Simplify right side
    11,221.67x = 95,808,585.75
  5. Step 5: Solve for x
    x = 95,808,585.75/11,221.67
  6. Step 6: Final answer
    x = 8,537.82

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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.