Home / 18,800.79-25,945.09-11,247.43

Finding the Fourth Proportional to 18,800.79, 25,945.09 and 11,247.43

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Solution

The fourth proportional to 18,800.79, 25,945.09 and 11,247.43 is: 15,521.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800.79 : 25,945.09 = 11,247.43 : x
  2. Step 2: Convert to fraction form
    18,800.79/25,945.09 = 11,247.43/x
  3. Step 3: Cross multiply
    18,800.79x = 25,945.09 × 11,247.43
  4. Step 4: Simplify right side
    18,800.79x = 291,815,583.62
  5. Step 5: Solve for x
    x = 291,815,583.62/18,800.79
  6. Step 6: Final answer
    x = 15,521.45

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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.