Home / 6,138.12-8,468.08-4,276.20

Finding the Fourth Proportional to 6,138.12, 8,468.08 and 4,276.20

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Solution

The fourth proportional to 6,138.12, 8,468.08 and 4,276.20 is: 5,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138.12 : 8,468.08 = 4,276.20 : x
  2. Step 2: Convert to fraction form
    6,138.12/8,468.08 = 4,276.20/x
  3. Step 3: Cross multiply
    6,138.12x = 8,468.08 × 4,276.20
  4. Step 4: Simplify right side
    6,138.12x = 36,211,203.70
  5. Step 5: Solve for x
    x = 36,211,203.70/6,138.12
  6. Step 6: Final answer
    x = 5,899.40

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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.