Home / 18,540.24-27,811.58-7,445.49

Finding the Fourth Proportional to 18,540.24, 27,811.58 and 7,445.49

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Solution

The fourth proportional to 18,540.24, 27,811.58 and 7,445.49 is: 11,168.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.24 : 27,811.58 = 7,445.49 : x
  2. Step 2: Convert to fraction form
    18,540.24/27,811.58 = 7,445.49/x
  3. Step 3: Cross multiply
    18,540.24x = 27,811.58 × 7,445.49
  4. Step 4: Simplify right side
    18,540.24x = 207,070,840.77
  5. Step 5: Solve for x
    x = 207,070,840.77/18,540.24
  6. Step 6: Final answer
    x = 11,168.72

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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.