Home / 7,895.47-11,837.71-3,997.21

Finding the Fourth Proportional to 7,895.47, 11,837.71 and 3,997.21

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Solution

The fourth proportional to 7,895.47, 11,837.71 and 3,997.21 is: 5,993.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,895.47 : 11,837.71 = 3,997.21 : x
  2. Step 2: Convert to fraction form
    7,895.47/11,837.71 = 3,997.21/x
  3. Step 3: Cross multiply
    7,895.47x = 11,837.71 × 3,997.21
  4. Step 4: Simplify right side
    7,895.47x = 47,317,812.79
  5. Step 5: Solve for x
    x = 47,317,812.79/7,895.47
  6. Step 6: Final answer
    x = 5,993.03

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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.