Home / 11,391.26-15,721.15-6,357.23

Finding the Fourth Proportional to 11,391.26, 15,721.15 and 6,357.23

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Solution

The fourth proportional to 11,391.26, 15,721.15 and 6,357.23 is: 8,773.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,391.26 : 15,721.15 = 6,357.23 : x
  2. Step 2: Convert to fraction form
    11,391.26/15,721.15 = 6,357.23/x
  3. Step 3: Cross multiply
    11,391.26x = 15,721.15 × 6,357.23
  4. Step 4: Simplify right side
    11,391.26x = 99,942,871.92
  5. Step 5: Solve for x
    x = 99,942,871.92/11,391.26
  6. Step 6: Final answer
    x = 8,773.65

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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.