Home / 15,249.93-21,044.70-8,535.56

Finding the Fourth Proportional to 15,249.93, 21,044.70 and 8,535.56

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Solution

The fourth proportional to 15,249.93, 21,044.70 and 8,535.56 is: 11,778.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,249.93 : 21,044.70 = 8,535.56 : x
  2. Step 2: Convert to fraction form
    15,249.93/21,044.70 = 8,535.56/x
  3. Step 3: Cross multiply
    15,249.93x = 21,044.70 × 8,535.56
  4. Step 4: Simplify right side
    15,249.93x = 179,628,283.30
  5. Step 5: Solve for x
    x = 179,628,283.30/15,249.93
  6. Step 6: Final answer
    x = 11,778.96

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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.