Home / 6,138.69-8,462.48-4,247.39

Finding the Fourth Proportional to 6,138.69, 8,462.48 and 4,247.39

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Solution

The fourth proportional to 6,138.69, 8,462.48 and 4,247.39 is: 5,855.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138.69 : 8,462.48 = 4,247.39 : x
  2. Step 2: Convert to fraction form
    6,138.69/8,462.48 = 4,247.39/x
  3. Step 3: Cross multiply
    6,138.69x = 8,462.48 × 4,247.39
  4. Step 4: Simplify right side
    6,138.69x = 35,943,405.25
  5. Step 5: Solve for x
    x = 35,943,405.25/6,138.69
  6. Step 6: Final answer
    x = 5,855.23

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Half scale
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Double scale
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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.