Home / 11,357.91-15,673.23-6,321.87

Finding the Fourth Proportional to 11,357.91, 15,673.23 and 6,321.87

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Solution

The fourth proportional to 11,357.91, 15,673.23 and 6,321.87 is: 8,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,357.91 : 15,673.23 = 6,321.87 : x
  2. Step 2: Convert to fraction form
    11,357.91/15,673.23 = 6,321.87/x
  3. Step 3: Cross multiply
    11,357.91x = 15,673.23 × 6,321.87
  4. Step 4: Simplify right side
    11,357.91x = 99,084,122.54
  5. Step 5: Solve for x
    x = 99,084,122.54/11,357.91
  6. Step 6: Final answer
    x = 8,723.80

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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.