Home / 18,660.60-27,993.47-6,812.82

Finding the Fourth Proportional to 18,660.60, 27,993.47 and 6,812.82

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Solution

The fourth proportional to 18,660.60, 27,993.47 and 6,812.82 is: 10,220.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.60 : 27,993.47 = 6,812.82 : x
  2. Step 2: Convert to fraction form
    18,660.60/27,993.47 = 6,812.82/x
  3. Step 3: Cross multiply
    18,660.60x = 27,993.47 × 6,812.82
  4. Step 4: Simplify right side
    18,660.60x = 190,714,438.22
  5. Step 5: Solve for x
    x = 190,714,438.22/18,660.60
  6. Step 6: Final answer
    x = 10,220.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.