Home / 10,279.27-15,439.94-6,774.30

Finding the Fourth Proportional to 10,279.27, 15,439.94 and 6,774.30

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Solution

The fourth proportional to 10,279.27, 15,439.94 and 6,774.30 is: 10,175.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.27 : 15,439.94 = 6,774.30 : x
  2. Step 2: Convert to fraction form
    10,279.27/15,439.94 = 6,774.30/x
  3. Step 3: Cross multiply
    10,279.27x = 15,439.94 × 6,774.30
  4. Step 4: Simplify right side
    10,279.27x = 104,594,785.54
  5. Step 5: Solve for x
    x = 104,594,785.54/10,279.27
  6. Step 6: Final answer
    x = 10,175.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.