Home / 11,472.26-15,830.79-6,435.78

Finding the Fourth Proportional to 11,472.26, 15,830.79 and 6,435.78

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Solution

The fourth proportional to 11,472.26, 15,830.79 and 6,435.78 is: 8,880.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,472.26 : 15,830.79 = 6,435.78 : x
  2. Step 2: Convert to fraction form
    11,472.26/15,830.79 = 6,435.78/x
  3. Step 3: Cross multiply
    11,472.26x = 15,830.79 × 6,435.78
  4. Step 4: Simplify right side
    11,472.26x = 101,883,481.67
  5. Step 5: Solve for x
    x = 101,883,481.67/11,472.26
  6. Step 6: Final answer
    x = 8,880.86

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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.