Home / 12,563.28-17,339.64-8,086.32

Finding the Fourth Proportional to 12,563.28, 17,339.64 and 8,086.32

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Solution

The fourth proportional to 12,563.28, 17,339.64 and 8,086.32 is: 11,160.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563.28 : 17,339.64 = 8,086.32 : x
  2. Step 2: Convert to fraction form
    12,563.28/17,339.64 = 8,086.32/x
  3. Step 3: Cross multiply
    12,563.28x = 17,339.64 × 8,086.32
  4. Step 4: Simplify right side
    12,563.28x = 140,213,877.72
  5. Step 5: Solve for x
    x = 140,213,877.72/12,563.28
  6. Step 6: Final answer
    x = 11,160.61

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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.