Home / 18,638.66-27,958.30-5,492.36

Finding the Fourth Proportional to 18,638.66, 27,958.30 and 5,492.36

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Solution

The fourth proportional to 18,638.66, 27,958.30 and 5,492.36 is: 8,238.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.66 : 27,958.30 = 5,492.36 : x
  2. Step 2: Convert to fraction form
    18,638.66/27,958.30 = 5,492.36/x
  3. Step 3: Cross multiply
    18,638.66x = 27,958.30 × 5,492.36
  4. Step 4: Simplify right side
    18,638.66x = 153,557,104.75
  5. Step 5: Solve for x
    x = 153,557,104.75/18,638.66
  6. Step 6: Final answer
    x = 8,238.63

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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.