Home / 18,770.79-25,896.32-12,055.48

Finding the Fourth Proportional to 18,770.79, 25,896.32 and 12,055.48

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Solution

The fourth proportional to 18,770.79, 25,896.32 and 12,055.48 is: 16,631.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.79 : 25,896.32 = 12,055.48 : x
  2. Step 2: Convert to fraction form
    18,770.79/25,896.32 = 12,055.48/x
  3. Step 3: Cross multiply
    18,770.79x = 25,896.32 × 12,055.48
  4. Step 4: Simplify right side
    18,770.79x = 312,192,507.56
  5. Step 5: Solve for x
    x = 312,192,507.56/18,770.79
  6. Step 6: Final answer
    x = 16,631.83

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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.