Home / 11,756.40-16,223.83-6,720.73

Finding the Fourth Proportional to 11,756.40, 16,223.83 and 6,720.73

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Solution

The fourth proportional to 11,756.40, 16,223.83 and 6,720.73 is: 9,274.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,756.40 : 16,223.83 = 6,720.73 : x
  2. Step 2: Convert to fraction form
    11,756.40/16,223.83 = 6,720.73/x
  3. Step 3: Cross multiply
    11,756.40x = 16,223.83 × 6,720.73
  4. Step 4: Simplify right side
    11,756.40x = 109,035,981.00
  5. Step 5: Solve for x
    x = 109,035,981.00/11,756.40
  6. Step 6: Final answer
    x = 9,274.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.