Home / 18,289.80-27,433.49-7,205.36

Finding the Fourth Proportional to 18,289.80, 27,433.49 and 7,205.36

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Solution

The fourth proportional to 18,289.80, 27,433.49 and 7,205.36 is: 10,807.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.80 : 27,433.49 = 7,205.36 : x
  2. Step 2: Convert to fraction form
    18,289.80/27,433.49 = 7,205.36/x
  3. Step 3: Cross multiply
    18,289.80x = 27,433.49 × 7,205.36
  4. Step 4: Simplify right side
    18,289.80x = 197,667,998.31
  5. Step 5: Solve for x
    x = 197,667,998.31/18,289.80
  6. Step 6: Final answer
    x = 10,807.55

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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.