Home / 7,849.48-11,776.38-6,989.80

Finding the Fourth Proportional to 7,849.48, 11,776.38 and 6,989.80

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Solution

The fourth proportional to 7,849.48, 11,776.38 and 6,989.80 is: 10,486.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,849.48 : 11,776.38 = 6,989.80 : x
  2. Step 2: Convert to fraction form
    7,849.48/11,776.38 = 6,989.80/x
  3. Step 3: Cross multiply
    7,849.48x = 11,776.38 × 6,989.80
  4. Step 4: Simplify right side
    7,849.48x = 82,314,540.92
  5. Step 5: Solve for x
    x = 82,314,540.92/7,849.48
  6. Step 6: Final answer
    x = 10,486.62

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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.