Home / 18,747.72-25,836.26-13,433.31

Finding the Fourth Proportional to 18,747.72, 25,836.26 and 13,433.31

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Solution

The fourth proportional to 18,747.72, 25,836.26 and 13,433.31 is: 18,512.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.72 : 25,836.26 = 13,433.31 : x
  2. Step 2: Convert to fraction form
    18,747.72/25,836.26 = 13,433.31/x
  3. Step 3: Cross multiply
    18,747.72x = 25,836.26 × 13,433.31
  4. Step 4: Simplify right side
    18,747.72x = 347,066,422.65
  5. Step 5: Solve for x
    x = 347,066,422.65/18,747.72
  6. Step 6: Final answer
    x = 18,512.46

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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.