Home / 18,690.68-25,793.06-10,192.78

Finding the Fourth Proportional to 18,690.68, 25,793.06 and 10,192.78

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Solution

The fourth proportional to 18,690.68, 25,793.06 and 10,192.78 is: 14,065.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.68 : 25,793.06 = 10,192.78 : x
  2. Step 2: Convert to fraction form
    18,690.68/25,793.06 = 10,192.78/x
  3. Step 3: Cross multiply
    18,690.68x = 25,793.06 × 10,192.78
  4. Step 4: Simplify right side
    18,690.68x = 262,902,841.41
  5. Step 5: Solve for x
    x = 262,902,841.41/18,690.68
  6. Step 6: Final answer
    x = 14,065.99

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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.