Home / 18,340.38-25,309.53-9,956.88

Finding the Fourth Proportional to 18,340.38, 25,309.53 and 9,956.88

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Solution

The fourth proportional to 18,340.38, 25,309.53 and 9,956.88 is: 13,740.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,340.38 : 25,309.53 = 9,956.88 : x
  2. Step 2: Convert to fraction form
    18,340.38/25,309.53 = 9,956.88/x
  3. Step 3: Cross multiply
    18,340.38x = 25,309.53 × 9,956.88
  4. Step 4: Simplify right side
    18,340.38x = 252,003,953.07
  5. Step 5: Solve for x
    x = 252,003,953.07/18,340.38
  6. Step 6: Final answer
    x = 13,740.39

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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.