Home / 18,120.87-25,006.97-10,162.92

Finding the Fourth Proportional to 18,120.87, 25,006.97 and 10,162.92

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Solution

The fourth proportional to 18,120.87, 25,006.97 and 10,162.92 is: 14,024.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.87 : 25,006.97 = 10,162.92 : x
  2. Step 2: Convert to fraction form
    18,120.87/25,006.97 = 10,162.92/x
  3. Step 3: Cross multiply
    18,120.87x = 25,006.97 × 10,162.92
  4. Step 4: Simplify right side
    18,120.87x = 254,143,835.55
  5. Step 5: Solve for x
    x = 254,143,835.55/18,120.87
  6. Step 6: Final answer
    x = 14,024.92

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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.