Home / 11,209.58-15,469.41-6,429.53

Finding the Fourth Proportional to 11,209.58, 15,469.41 and 6,429.53

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Solution

The fourth proportional to 11,209.58, 15,469.41 and 6,429.53 is: 8,872.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.58 : 15,469.41 = 6,429.53 : x
  2. Step 2: Convert to fraction form
    11,209.58/15,469.41 = 6,429.53/x
  3. Step 3: Cross multiply
    11,209.58x = 15,469.41 × 6,429.53
  4. Step 4: Simplify right side
    11,209.58x = 99,460,958.33
  5. Step 5: Solve for x
    x = 99,460,958.33/11,209.58
  6. Step 6: Final answer
    x = 8,872.86

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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.