Home / 18,505.41-27,762.26-5,358.78

Finding the Fourth Proportional to 18,505.41, 27,762.26 and 5,358.78

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Solution

The fourth proportional to 18,505.41, 27,762.26 and 5,358.78 is: 8,039.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.41 : 27,762.26 = 5,358.78 : x
  2. Step 2: Convert to fraction form
    18,505.41/27,762.26 = 5,358.78/x
  3. Step 3: Cross multiply
    18,505.41x = 27,762.26 × 5,358.78
  4. Step 4: Simplify right side
    18,505.41x = 148,771,816.85
  5. Step 5: Solve for x
    x = 148,771,816.85/18,505.41
  6. Step 6: Final answer
    x = 8,039.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.