Home / 11,725.48-16,182.72-6,688.56

Finding the Fourth Proportional to 11,725.48, 16,182.72 and 6,688.56

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Solution

The fourth proportional to 11,725.48, 16,182.72 and 6,688.56 is: 9,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,725.48 : 16,182.72 = 6,688.56 : x
  2. Step 2: Convert to fraction form
    11,725.48/16,182.72 = 6,688.56/x
  3. Step 3: Cross multiply
    11,725.48x = 16,182.72 × 6,688.56
  4. Step 4: Simplify right side
    11,725.48x = 108,239,093.68
  5. Step 5: Solve for x
    x = 108,239,093.68/11,725.48
  6. Step 6: Final answer
    x = 9,231.10

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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.