Home / 12,566.10-17,338.32-8,091.36

Finding the Fourth Proportional to 12,566.10, 17,338.32 and 8,091.36

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Solution

The fourth proportional to 12,566.10, 17,338.32 and 8,091.36 is: 11,164.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,566.10 : 17,338.32 = 8,091.36 : x
  2. Step 2: Convert to fraction form
    12,566.10/17,338.32 = 8,091.36/x
  3. Step 3: Cross multiply
    12,566.10x = 17,338.32 × 8,091.36
  4. Step 4: Simplify right side
    12,566.10x = 140,290,588.92
  5. Step 5: Solve for x
    x = 140,290,588.92/12,566.10
  6. Step 6: Final answer
    x = 11,164.21

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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.