Home / 18,939.28-26,136.20-10,441.54

Finding the Fourth Proportional to 18,939.28, 26,136.20 and 10,441.54

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Solution

The fourth proportional to 18,939.28, 26,136.20 and 10,441.54 is: 14,409.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,939.28 : 26,136.20 = 10,441.54 : x
  2. Step 2: Convert to fraction form
    18,939.28/26,136.20 = 10,441.54/x
  3. Step 3: Cross multiply
    18,939.28x = 26,136.20 × 10,441.54
  4. Step 4: Simplify right side
    18,939.28x = 272,902,177.75
  5. Step 5: Solve for x
    x = 272,902,177.75/18,939.28
  6. Step 6: Final answer
    x = 14,409.32

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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.