Home / 11,351.31-15,674.72-7,636.11

Finding the Fourth Proportional to 11,351.31, 15,674.72 and 7,636.11

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Solution

The fourth proportional to 11,351.31, 15,674.72 and 7,636.11 is: 10,544.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.31 : 15,674.72 = 7,636.11 : x
  2. Step 2: Convert to fraction form
    11,351.31/15,674.72 = 7,636.11/x
  3. Step 3: Cross multiply
    11,351.31x = 15,674.72 × 7,636.11
  4. Step 4: Simplify right side
    11,351.31x = 119,693,847.96
  5. Step 5: Solve for x
    x = 119,693,847.96/11,351.31
  6. Step 6: Final answer
    x = 10,544.50

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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.