Home / 7,680.99-11,520.09-2,132.94

Finding the Fourth Proportional to 7,680.99, 11,520.09 and 2,132.94

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Solution

The fourth proportional to 7,680.99, 11,520.09 and 2,132.94 is: 3,199.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.99 : 11,520.09 = 2,132.94 : x
  2. Step 2: Convert to fraction form
    7,680.99/11,520.09 = 2,132.94/x
  3. Step 3: Cross multiply
    7,680.99x = 11,520.09 × 2,132.94
  4. Step 4: Simplify right side
    7,680.99x = 24,571,660.76
  5. Step 5: Solve for x
    x = 24,571,660.76/7,680.99
  6. Step 6: Final answer
    x = 3,199.02

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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.