Home / 15,293.09-21,106.82-8,581.43

Finding the Fourth Proportional to 15,293.09, 21,106.82 and 8,581.43

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Solution

The fourth proportional to 15,293.09, 21,106.82 and 8,581.43 is: 11,843.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,293.09 : 21,106.82 = 8,581.43 : x
  2. Step 2: Convert to fraction form
    15,293.09/21,106.82 = 8,581.43/x
  3. Step 3: Cross multiply
    15,293.09x = 21,106.82 × 8,581.43
  4. Step 4: Simplify right side
    15,293.09x = 181,126,698.35
  5. Step 5: Solve for x
    x = 181,126,698.35/15,293.09
  6. Step 6: Final answer
    x = 11,843.70

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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.