Home / 12,554.89-18,832.47-3,789.88

Finding the Fourth Proportional to 12,554.89, 18,832.47 and 3,789.88

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Solution

The fourth proportional to 12,554.89, 18,832.47 and 3,789.88 is: 5,684.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,554.89 : 18,832.47 = 3,789.88 : x
  2. Step 2: Convert to fraction form
    12,554.89/18,832.47 = 3,789.88/x
  3. Step 3: Cross multiply
    12,554.89x = 18,832.47 × 3,789.88
  4. Step 4: Simplify right side
    12,554.89x = 71,372,801.40
  5. Step 5: Solve for x
    x = 71,372,801.40/12,554.89
  6. Step 6: Final answer
    x = 5,684.86

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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.