Home / 18,769.68-25,912.44-12,810.24

Finding the Fourth Proportional to 18,769.68, 25,912.44 and 12,810.24

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Solution

The fourth proportional to 18,769.68, 25,912.44 and 12,810.24 is: 17,685.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.68 : 25,912.44 = 12,810.24 : x
  2. Step 2: Convert to fraction form
    18,769.68/25,912.44 = 12,810.24/x
  3. Step 3: Cross multiply
    18,769.68x = 25,912.44 × 12,810.24
  4. Step 4: Simplify right side
    18,769.68x = 331,944,575.39
  5. Step 5: Solve for x
    x = 331,944,575.39/18,769.68
  6. Step 6: Final answer
    x = 17,685.15

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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.