Home / 14,789.57-20,409.27-8,074.86

Finding the Fourth Proportional to 14,789.57, 20,409.27 and 8,074.86

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Solution

The fourth proportional to 14,789.57, 20,409.27 and 8,074.86 is: 11,143.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,789.57 : 20,409.27 = 8,074.86 : x
  2. Step 2: Convert to fraction form
    14,789.57/20,409.27 = 8,074.86/x
  3. Step 3: Cross multiply
    14,789.57x = 20,409.27 × 8,074.86
  4. Step 4: Simplify right side
    14,789.57x = 164,801,997.95
  5. Step 5: Solve for x
    x = 164,801,997.95/14,789.57
  6. Step 6: Final answer
    x = 11,143.13

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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.