Home / 14,861.45-20,508.75-8,147.36

Finding the Fourth Proportional to 14,861.45, 20,508.75 and 8,147.36

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Solution

The fourth proportional to 14,861.45, 20,508.75 and 8,147.36 is: 11,243.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,861.45 : 20,508.75 = 8,147.36 : x
  2. Step 2: Convert to fraction form
    14,861.45/20,508.75 = 8,147.36/x
  3. Step 3: Cross multiply
    14,861.45x = 20,508.75 × 8,147.36
  4. Step 4: Simplify right side
    14,861.45x = 167,092,066.86
  5. Step 5: Solve for x
    x = 167,092,066.86/14,861.45
  6. Step 6: Final answer
    x = 11,243.33

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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.