Home / 11,195.82-15,439.75-6,947.58

Finding the Fourth Proportional to 11,195.82, 15,439.75 and 6,947.58

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Solution

The fourth proportional to 11,195.82, 15,439.75 and 6,947.58 is: 9,581.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,195.82 : 15,439.75 = 6,947.58 : x
  2. Step 2: Convert to fraction form
    11,195.82/15,439.75 = 6,947.58/x
  3. Step 3: Cross multiply
    11,195.82x = 15,439.75 × 6,947.58
  4. Step 4: Simplify right side
    11,195.82x = 107,268,898.31
  5. Step 5: Solve for x
    x = 107,268,898.31/11,195.82
  6. Step 6: Final answer
    x = 9,581.16

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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.