Home / 7,842.56-11,740.68-4,136.81

Finding the Fourth Proportional to 7,842.56, 11,740.68 and 4,136.81

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Solution

The fourth proportional to 7,842.56, 11,740.68 and 4,136.81 is: 6,192.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,842.56 : 11,740.68 = 4,136.81 : x
  2. Step 2: Convert to fraction form
    7,842.56/11,740.68 = 4,136.81/x
  3. Step 3: Cross multiply
    7,842.56x = 11,740.68 × 4,136.81
  4. Step 4: Simplify right side
    7,842.56x = 48,568,903.73
  5. Step 5: Solve for x
    x = 48,568,903.73/7,842.56
  6. Step 6: Final answer
    x = 6,192.99

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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.