Home / 18,215.33-25,138.46-10,149.66

Finding the Fourth Proportional to 18,215.33, 25,138.46 and 10,149.66

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Solution

The fourth proportional to 18,215.33, 25,138.46 and 10,149.66 is: 14,007.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.33 : 25,138.46 = 10,149.66 : x
  2. Step 2: Convert to fraction form
    18,215.33/25,138.46 = 10,149.66/x
  3. Step 3: Cross multiply
    18,215.33x = 25,138.46 × 10,149.66
  4. Step 4: Simplify right side
    18,215.33x = 255,146,771.18
  5. Step 5: Solve for x
    x = 255,146,771.18/18,215.33
  6. Step 6: Final answer
    x = 14,007.25

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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.