Home / 18,290.72-27,433.92-7,205.60

Finding the Fourth Proportional to 18,290.72, 27,433.92 and 7,205.60

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Solution

The fourth proportional to 18,290.72, 27,433.92 and 7,205.60 is: 10,807.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290.72 : 27,433.92 = 7,205.60 : x
  2. Step 2: Convert to fraction form
    18,290.72/27,433.92 = 7,205.60/x
  3. Step 3: Cross multiply
    18,290.72x = 27,433.92 × 7,205.60
  4. Step 4: Simplify right side
    18,290.72x = 197,677,853.95
  5. Step 5: Solve for x
    x = 197,677,853.95/18,290.72
  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.