Home / 18,138.72-25,031.44-10,183.52

Finding the Fourth Proportional to 18,138.72, 25,031.44 and 10,183.52

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Solution

The fourth proportional to 18,138.72, 25,031.44 and 10,183.52 is: 14,053.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.72 : 25,031.44 = 10,183.52 : x
  2. Step 2: Convert to fraction form
    18,138.72/25,031.44 = 10,183.52/x
  3. Step 3: Cross multiply
    18,138.72x = 25,031.44 × 10,183.52
  4. Step 4: Simplify right side
    18,138.72x = 254,908,169.87
  5. Step 5: Solve for x
    x = 254,908,169.87/18,138.72
  6. Step 6: Final answer
    x = 14,053.26

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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.