Home / 11,222.68-15,487.35-6,186.79

Finding the Fourth Proportional to 11,222.68, 15,487.35 and 6,186.79

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Solution

The fourth proportional to 11,222.68, 15,487.35 and 6,186.79 is: 8,537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,222.68 : 15,487.35 = 6,186.79 : x
  2. Step 2: Convert to fraction form
    11,222.68/15,487.35 = 6,186.79/x
  3. Step 3: Cross multiply
    11,222.68x = 15,487.35 × 6,186.79
  4. Step 4: Simplify right side
    11,222.68x = 95,817,005.31
  5. Step 5: Solve for x
    x = 95,817,005.31/11,222.68
  6. Step 6: Final answer
    x = 8,537.80

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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.