Home / 14,909.41-20,575.15-8,103.43

Finding the Fourth Proportional to 14,909.41, 20,575.15 and 8,103.43

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Solution

The fourth proportional to 14,909.41, 20,575.15 and 8,103.43 is: 11,182.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,909.41 : 20,575.15 = 8,103.43 : x
  2. Step 2: Convert to fraction form
    14,909.41/20,575.15 = 8,103.43/x
  3. Step 3: Cross multiply
    14,909.41x = 20,575.15 × 8,103.43
  4. Step 4: Simplify right side
    14,909.41x = 166,729,287.76
  5. Step 5: Solve for x
    x = 166,729,287.76/14,909.41
  6. Step 6: Final answer
    x = 11,182.82

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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.