Home / 7,939.71-10,954.58-6,255.90

Finding the Fourth Proportional to 7,939.71, 10,954.58 and 6,255.90

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Solution

The fourth proportional to 7,939.71, 10,954.58 and 6,255.90 is: 8,631.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.71 : 10,954.58 = 6,255.90 : x
  2. Step 2: Convert to fraction form
    7,939.71/10,954.58 = 6,255.90/x
  3. Step 3: Cross multiply
    7,939.71x = 10,954.58 × 6,255.90
  4. Step 4: Simplify right side
    7,939.71x = 68,530,725.74
  5. Step 5: Solve for x
    x = 68,530,725.74/7,939.71
  6. Step 6: Final answer
    x = 8,631.39

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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.