Home / 19,086.45-28,600.65-9,213.90

Finding the Fourth Proportional to 19,086.45, 28,600.65 and 9,213.90

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Solution

The fourth proportional to 19,086.45, 28,600.65 and 9,213.90 is: 13,806.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,086.45 : 28,600.65 = 9,213.90 : x
  2. Step 2: Convert to fraction form
    19,086.45/28,600.65 = 9,213.90/x
  3. Step 3: Cross multiply
    19,086.45x = 28,600.65 × 9,213.90
  4. Step 4: Simplify right side
    19,086.45x = 263,523,529.04
  5. Step 5: Solve for x
    x = 263,523,529.04/19,086.45
  6. Step 6: Final answer
    x = 13,806.84

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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.