Home / 7,867.88-10,857.44-4,331.07

Finding the Fourth Proportional to 7,867.88, 10,857.44 and 4,331.07

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Solution

The fourth proportional to 7,867.88, 10,857.44 and 4,331.07 is: 5,976.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.88 : 10,857.44 = 4,331.07 : x
  2. Step 2: Convert to fraction form
    7,867.88/10,857.44 = 4,331.07/x
  3. Step 3: Cross multiply
    7,867.88x = 10,857.44 × 4,331.07
  4. Step 4: Simplify right side
    7,867.88x = 47,024,343.49
  5. Step 5: Solve for x
    x = 47,024,343.49/7,867.88
  6. Step 6: Final answer
    x = 5,976.75

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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.