Home / 18,376.56-27,554.40-12,540.24

Finding the Fourth Proportional to 18,376.56, 27,554.40 and 12,540.24

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Solution

The fourth proportional to 18,376.56, 27,554.40 and 12,540.24 is: 18,803.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,376.56 : 27,554.40 = 12,540.24 : x
  2. Step 2: Convert to fraction form
    18,376.56/27,554.40 = 12,540.24/x
  3. Step 3: Cross multiply
    18,376.56x = 27,554.40 × 12,540.24
  4. Step 4: Simplify right side
    18,376.56x = 345,538,789.06
  5. Step 5: Solve for x
    x = 345,538,789.06/18,376.56
  6. Step 6: Final answer
    x = 18,803.24

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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.