Home / 8,142.72-12,214.08-2,299.32

Finding the Fourth Proportional to 8,142.72, 12,214.08 and 2,299.32

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Solution

The fourth proportional to 8,142.72, 12,214.08 and 2,299.32 is: 3,448.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.72 : 12,214.08 = 2,299.32 : x
  2. Step 2: Convert to fraction form
    8,142.72/12,214.08 = 2,299.32/x
  3. Step 3: Cross multiply
    8,142.72x = 12,214.08 × 2,299.32
  4. Step 4: Simplify right side
    8,142.72x = 28,084,078.43
  5. Step 5: Solve for x
    x = 28,084,078.43/8,142.72
  6. Step 6: Final answer
    x = 3,448.98

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Similar ratio
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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.