Home / 18,120.42-25,006.42-10,949.34

Finding the Fourth Proportional to 18,120.42, 25,006.42 and 10,949.34

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Solution

The fourth proportional to 18,120.42, 25,006.42 and 10,949.34 is: 15,110.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.42 : 25,006.42 = 10,949.34 : x
  2. Step 2: Convert to fraction form
    18,120.42/25,006.42 = 10,949.34/x
  3. Step 3: Cross multiply
    18,120.42x = 25,006.42 × 10,949.34
  4. Step 4: Simplify right side
    18,120.42x = 273,803,794.76
  5. Step 5: Solve for x
    x = 273,803,794.76/18,120.42
  6. Step 6: Final answer
    x = 15,110.23

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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.