Home / 18,769.20-25,905.87-12,396.93

Finding the Fourth Proportional to 18,769.20, 25,905.87 and 12,396.93

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Solution

The fourth proportional to 18,769.20, 25,905.87 and 12,396.93 is: 17,110.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.20 : 25,905.87 = 12,396.93 : x
  2. Step 2: Convert to fraction form
    18,769.20/25,905.87 = 12,396.93/x
  3. Step 3: Cross multiply
    18,769.20x = 25,905.87 × 12,396.93
  4. Step 4: Simplify right side
    18,769.20x = 321,153,256.98
  5. Step 5: Solve for x
    x = 321,153,256.98/18,769.20
  6. Step 6: Final answer
    x = 17,110.65

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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.