Home / 18,140.51-25,031.98-10,183.61

Finding the Fourth Proportional to 18,140.51, 25,031.98 and 10,183.61

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Solution

The fourth proportional to 18,140.51, 25,031.98 and 10,183.61 is: 14,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140.51 : 25,031.98 = 10,183.61 : x
  2. Step 2: Convert to fraction form
    18,140.51/25,031.98 = 10,183.61/x
  3. Step 3: Cross multiply
    18,140.51x = 25,031.98 × 10,183.61
  4. Step 4: Simplify right side
    18,140.51x = 254,915,921.85
  5. Step 5: Solve for x
    x = 254,915,921.85/18,140.51
  6. Step 6: Final answer
    x = 14,052.30

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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.