Home / 15,249.69-21,044.48-8,535.29

Finding the Fourth Proportional to 15,249.69, 21,044.48 and 8,535.29

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Solution

The fourth proportional to 15,249.69, 21,044.48 and 8,535.29 is: 11,778.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,249.69 : 21,044.48 = 8,535.29 : x
  2. Step 2: Convert to fraction form
    15,249.69/21,044.48 = 8,535.29/x
  3. Step 3: Cross multiply
    15,249.69x = 21,044.48 × 8,535.29
  4. Step 4: Simplify right side
    15,249.69x = 179,620,591.80
  5. Step 5: Solve for x
    x = 179,620,591.80/15,249.69
  6. Step 6: Final answer
    x = 11,778.64

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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.