Home / 18,136.20-27,202.98-4,808.88

Finding the Fourth Proportional to 18,136.20, 27,202.98 and 4,808.88

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Solution

The fourth proportional to 18,136.20, 27,202.98 and 4,808.88 is: 7,212.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.20 : 27,202.98 = 4,808.88 : x
  2. Step 2: Convert to fraction form
    18,136.20/27,202.98 = 4,808.88/x
  3. Step 3: Cross multiply
    18,136.20x = 27,202.98 × 4,808.88
  4. Step 4: Simplify right side
    18,136.20x = 130,815,866.46
  5. Step 5: Solve for x
    x = 130,815,866.46/18,136.20
  6. Step 6: Final answer
    x = 7,212.97

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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.