Home / 11,011.12-16,512.45-3,989.07

Finding the Fourth Proportional to 11,011.12, 16,512.45 and 3,989.07

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Solution

The fourth proportional to 11,011.12, 16,512.45 and 3,989.07 is: 5,982.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,011.12 : 16,512.45 = 3,989.07 : x
  2. Step 2: Convert to fraction form
    11,011.12/16,512.45 = 3,989.07/x
  3. Step 3: Cross multiply
    11,011.12x = 16,512.45 × 3,989.07
  4. Step 4: Simplify right side
    11,011.12x = 65,869,318.92
  5. Step 5: Solve for x
    x = 65,869,318.92/11,011.12
  6. Step 6: Final answer
    x = 5,982.07

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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.