Home / 18,120.82-25,007.67-10,162.60

Finding the Fourth Proportional to 18,120.82, 25,007.67 and 10,162.60

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Solution

The fourth proportional to 18,120.82, 25,007.67 and 10,162.60 is: 14,024.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.82 : 25,007.67 = 10,162.60 : x
  2. Step 2: Convert to fraction form
    18,120.82/25,007.67 = 10,162.60/x
  3. Step 3: Cross multiply
    18,120.82x = 25,007.67 × 10,162.60
  4. Step 4: Simplify right side
    18,120.82x = 254,142,947.14
  5. Step 5: Solve for x
    x = 254,142,947.14/18,120.82
  6. Step 6: Final answer
    x = 14,024.91

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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.