Home / 11,469.92-15,828.48-6,434.18

Finding the Fourth Proportional to 11,469.92, 15,828.48 and 6,434.18

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Solution

The fourth proportional to 11,469.92, 15,828.48 and 6,434.18 is: 8,879.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,469.92 : 15,828.48 = 6,434.18 : x
  2. Step 2: Convert to fraction form
    11,469.92/15,828.48 = 6,434.18/x
  3. Step 3: Cross multiply
    11,469.92x = 15,828.48 × 6,434.18
  4. Step 4: Simplify right side
    11,469.92x = 101,843,289.45
  5. Step 5: Solve for x
    x = 101,843,289.45/11,469.92
  6. Step 6: Final answer
    x = 8,879.16

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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.