Home / 18,139.97-25,031.78-10,180.66

Finding the Fourth Proportional to 18,139.97, 25,031.78 and 10,180.66

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Solution

The fourth proportional to 18,139.97, 25,031.78 and 10,180.66 is: 14,048.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.97 : 25,031.78 = 10,180.66 : x
  2. Step 2: Convert to fraction form
    18,139.97/25,031.78 = 10,180.66/x
  3. Step 3: Cross multiply
    18,139.97x = 25,031.78 × 10,180.66
  4. Step 4: Simplify right side
    18,139.97x = 254,840,041.37
  5. Step 5: Solve for x
    x = 254,840,041.37/18,139.97
  6. Step 6: Final answer
    x = 14,048.54

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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.