Home / 11,019.75-15,207.60-6,239.62

Finding the Fourth Proportional to 11,019.75, 15,207.60 and 6,239.62

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Solution

The fourth proportional to 11,019.75, 15,207.60 and 6,239.62 is: 8,610.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,019.75 : 15,207.60 = 6,239.62 : x
  2. Step 2: Convert to fraction form
    11,019.75/15,207.60 = 6,239.62/x
  3. Step 3: Cross multiply
    11,019.75x = 15,207.60 × 6,239.62
  4. Step 4: Simplify right side
    11,019.75x = 94,889,687.52
  5. Step 5: Solve for x
    x = 94,889,687.52/11,019.75
  6. Step 6: Final answer
    x = 8,610.88

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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.