Home / 18,629.80-27,923.10-7,529.20

Finding the Fourth Proportional to 18,629.80, 27,923.10 and 7,529.20

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Solution

The fourth proportional to 18,629.80, 27,923.10 and 7,529.20 is: 11,285.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,629.80 : 27,923.10 = 7,529.20 : x
  2. Step 2: Convert to fraction form
    18,629.80/27,923.10 = 7,529.20/x
  3. Step 3: Cross multiply
    18,629.80x = 27,923.10 × 7,529.20
  4. Step 4: Simplify right side
    18,629.80x = 210,238,604.52
  5. Step 5: Solve for x
    x = 210,238,604.52/18,629.80
  6. Step 6: Final answer
    x = 11,285.07

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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.