Home / 18,638.58-27,951.96-6,156.30

Finding the Fourth Proportional to 18,638.58, 27,951.96 and 6,156.30

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Solution

The fourth proportional to 18,638.58, 27,951.96 and 6,156.30 is: 9,232.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.58 : 27,951.96 = 6,156.30 : x
  2. Step 2: Convert to fraction form
    18,638.58/27,951.96 = 6,156.30/x
  3. Step 3: Cross multiply
    18,638.58x = 27,951.96 × 6,156.30
  4. Step 4: Simplify right side
    18,638.58x = 172,080,651.35
  5. Step 5: Solve for x
    x = 172,080,651.35/18,638.58
  6. Step 6: Final answer
    x = 9,232.50

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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.