Home / 14,909.60-20,575.79-8,195.74

Finding the Fourth Proportional to 14,909.60, 20,575.79 and 8,195.74

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Solution

The fourth proportional to 14,909.60, 20,575.79 and 8,195.74 is: 11,310.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,909.60 : 20,575.79 = 8,195.74 : x
  2. Step 2: Convert to fraction form
    14,909.60/20,575.79 = 8,195.74/x
  3. Step 3: Cross multiply
    14,909.60x = 20,575.79 × 8,195.74
  4. Step 4: Simplify right side
    14,909.60x = 168,633,763.45
  5. Step 5: Solve for x
    x = 168,633,763.45/14,909.60
  6. Step 6: Final answer
    x = 11,310.41

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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.