Home / 11,781.48-17,640.66-6,223.32

Finding the Fourth Proportional to 11,781.48, 17,640.66 and 6,223.32

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Solution

The fourth proportional to 11,781.48, 17,640.66 and 6,223.32 is: 9,318.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.48 : 17,640.66 = 6,223.32 : x
  2. Step 2: Convert to fraction form
    11,781.48/17,640.66 = 6,223.32/x
  3. Step 3: Cross multiply
    11,781.48x = 17,640.66 × 6,223.32
  4. Step 4: Simplify right side
    11,781.48x = 109,783,472.19
  5. Step 5: Solve for x
    x = 109,783,472.19/11,781.48
  6. Step 6: Final answer
    x = 9,318.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.