Home / 15,216.26-20,998.39-8,501.86

Finding the Fourth Proportional to 15,216.26, 20,998.39 and 8,501.86

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Solution

The fourth proportional to 15,216.26, 20,998.39 and 8,501.86 is: 11,732.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216.26 : 20,998.39 = 8,501.86 : x
  2. Step 2: Convert to fraction form
    15,216.26/20,998.39 = 8,501.86/x
  3. Step 3: Cross multiply
    15,216.26x = 20,998.39 × 8,501.86
  4. Step 4: Simplify right side
    15,216.26x = 178,525,392.94
  5. Step 5: Solve for x
    x = 178,525,392.94/15,216.26
  6. Step 6: Final answer
    x = 11,732.54

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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.