Home / 11,001.20-15,181.47-6,221.07

Finding the Fourth Proportional to 11,001.20, 15,181.47 and 6,221.07

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Solution

The fourth proportional to 11,001.20, 15,181.47 and 6,221.07 is: 8,584.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,001.20 : 15,181.47 = 6,221.07 : x
  2. Step 2: Convert to fraction form
    11,001.20/15,181.47 = 6,221.07/x
  3. Step 3: Cross multiply
    11,001.20x = 15,181.47 × 6,221.07
  4. Step 4: Simplify right side
    11,001.20x = 94,444,987.57
  5. Step 5: Solve for x
    x = 94,444,987.57/11,001.20
  6. Step 6: Final answer
    x = 8,584.97

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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.