Home / 8,179.20-11,284.34-4,640.36

Finding the Fourth Proportional to 8,179.20, 11,284.34 and 4,640.36

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Solution

The fourth proportional to 8,179.20, 11,284.34 and 4,640.36 is: 6,402.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.20 : 11,284.34 = 4,640.36 : x
  2. Step 2: Convert to fraction form
    8,179.20/11,284.34 = 4,640.36/x
  3. Step 3: Cross multiply
    8,179.20x = 11,284.34 × 4,640.36
  4. Step 4: Simplify right side
    8,179.20x = 52,363,320.34
  5. Step 5: Solve for x
    x = 52,363,320.34/8,179.20
  6. Step 6: Final answer
    x = 6,402.01

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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.