Home / 8,115.01-11,198.73-4,389.01

Finding the Fourth Proportional to 8,115.01, 11,198.73 and 4,389.01

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Solution

The fourth proportional to 8,115.01, 11,198.73 and 4,389.01 is: 6,056.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.01 : 11,198.73 = 4,389.01 : x
  2. Step 2: Convert to fraction form
    8,115.01/11,198.73 = 4,389.01/x
  3. Step 3: Cross multiply
    8,115.01x = 11,198.73 × 4,389.01
  4. Step 4: Simplify right side
    8,115.01x = 49,151,337.96
  5. Step 5: Solve for x
    x = 49,151,337.96/8,115.01
  6. Step 6: Final answer
    x = 6,056.84

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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.