Home / 18,399.34-25,393.06-11,227.80

Finding the Fourth Proportional to 18,399.34, 25,393.06 and 11,227.80

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Solution

The fourth proportional to 18,399.34, 25,393.06 and 11,227.80 is: 15,495.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.34 : 25,393.06 = 11,227.80 : x
  2. Step 2: Convert to fraction form
    18,399.34/25,393.06 = 11,227.80/x
  3. Step 3: Cross multiply
    18,399.34x = 25,393.06 × 11,227.80
  4. Step 4: Simplify right side
    18,399.34x = 285,108,199.07
  5. Step 5: Solve for x
    x = 285,108,199.07/18,399.34
  6. Step 6: Final answer
    x = 15,495.57

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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.