Home / 9,939.50-13,719.39-6,627.50

Finding the Fourth Proportional to 9,939.50, 13,719.39 and 6,627.50

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Solution

The fourth proportional to 9,939.50, 13,719.39 and 6,627.50 is: 9,147.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.50 : 13,719.39 = 6,627.50 : x
  2. Step 2: Convert to fraction form
    9,939.50/13,719.39 = 6,627.50/x
  3. Step 3: Cross multiply
    9,939.50x = 13,719.39 × 6,627.50
  4. Step 4: Simplify right side
    9,939.50x = 90,925,257.23
  5. Step 5: Solve for x
    x = 90,925,257.23/9,939.50
  6. Step 6: Final answer
    x = 9,147.87

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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.