Home / 11,711.16-16,160.94-6,405.84

Finding the Fourth Proportional to 11,711.16, 16,160.94 and 6,405.84

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Solution

The fourth proportional to 11,711.16, 16,160.94 and 6,405.84 is: 8,839.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.16 : 16,160.94 = 6,405.84 : x
  2. Step 2: Convert to fraction form
    11,711.16/16,160.94 = 6,405.84/x
  3. Step 3: Cross multiply
    11,711.16x = 16,160.94 × 6,405.84
  4. Step 4: Simplify right side
    11,711.16x = 103,524,395.89
  5. Step 5: Solve for x
    x = 103,524,395.89/11,711.16
  6. Step 6: Final answer
    x = 8,839.81

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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.