Home / 11,821.48-16,308.42-7,843.24

Finding the Fourth Proportional to 11,821.48, 16,308.42 and 7,843.24

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Solution

The fourth proportional to 11,821.48, 16,308.42 and 7,843.24 is: 10,820.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.48 : 16,308.42 = 7,843.24 : x
  2. Step 2: Convert to fraction form
    11,821.48/16,308.42 = 7,843.24/x
  3. Step 3: Cross multiply
    11,821.48x = 16,308.42 × 7,843.24
  4. Step 4: Simplify right side
    11,821.48x = 127,910,852.08
  5. Step 5: Solve for x
    x = 127,910,852.08/11,821.48
  6. Step 6: Final answer
    x = 10,820.21

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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.