Home / 10,909.76-16,364.84-3,514.86

Finding the Fourth Proportional to 10,909.76, 16,364.84 and 3,514.86

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Solution

The fourth proportional to 10,909.76, 16,364.84 and 3,514.86 is: 5,272.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.76 : 16,364.84 = 3,514.86 : x
  2. Step 2: Convert to fraction form
    10,909.76/16,364.84 = 3,514.86/x
  3. Step 3: Cross multiply
    10,909.76x = 16,364.84 × 3,514.86
  4. Step 4: Simplify right side
    10,909.76x = 57,520,103.95
  5. Step 5: Solve for x
    x = 57,520,103.95/10,909.76
  6. Step 6: Final answer
    x = 5,272.36

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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.