Home / 18,144.45-25,048.26-11,440.40

Finding the Fourth Proportional to 18,144.45, 25,048.26 and 11,440.40

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Solution

The fourth proportional to 18,144.45, 25,048.26 and 11,440.40 is: 15,793.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.45 : 25,048.26 = 11,440.40 : x
  2. Step 2: Convert to fraction form
    18,144.45/25,048.26 = 11,440.40/x
  3. Step 3: Cross multiply
    18,144.45x = 25,048.26 × 11,440.40
  4. Step 4: Simplify right side
    18,144.45x = 286,561,988.46
  5. Step 5: Solve for x
    x = 286,561,988.46/18,144.45
  6. Step 6: Final answer
    x = 15,793.37

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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.