Home / 13,975.86-20,961.34-4,615.76

Finding the Fourth Proportional to 13,975.86, 20,961.34 and 4,615.76

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Solution

The fourth proportional to 13,975.86, 20,961.34 and 4,615.76 is: 6,922.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.86 : 20,961.34 = 4,615.76 : x
  2. Step 2: Convert to fraction form
    13,975.86/20,961.34 = 4,615.76/x
  3. Step 3: Cross multiply
    13,975.86x = 20,961.34 × 4,615.76
  4. Step 4: Simplify right side
    13,975.86x = 96,752,514.72
  5. Step 5: Solve for x
    x = 96,752,514.72/13,975.86
  6. Step 6: Final answer
    x = 6,922.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.