Home / 8,057.94-11,120.31-5,072.64

Finding the Fourth Proportional to 8,057.94, 11,120.31 and 5,072.64

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Solution

The fourth proportional to 8,057.94, 11,120.31 and 5,072.64 is: 7,000.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,057.94 : 11,120.31 = 5,072.64 : x
  2. Step 2: Convert to fraction form
    8,057.94/11,120.31 = 5,072.64/x
  3. Step 3: Cross multiply
    8,057.94x = 11,120.31 × 5,072.64
  4. Step 4: Simplify right side
    8,057.94x = 56,409,329.32
  5. Step 5: Solve for x
    x = 56,409,329.32/8,057.94
  6. Step 6: Final answer
    x = 7,000.47

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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.