Home / 11,164.64-15,407.68-6,687.54

Finding the Fourth Proportional to 11,164.64, 15,407.68 and 6,687.54

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Solution

The fourth proportional to 11,164.64, 15,407.68 and 6,687.54 is: 9,229.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,164.64 : 15,407.68 = 6,687.54 : x
  2. Step 2: Convert to fraction form
    11,164.64/15,407.68 = 6,687.54/x
  3. Step 3: Cross multiply
    11,164.64x = 15,407.68 × 6,687.54
  4. Step 4: Simplify right side
    11,164.64x = 103,039,476.31
  5. Step 5: Solve for x
    x = 103,039,476.31/11,164.64
  6. Step 6: Final answer
    x = 9,229.09

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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.