Home / 7,989.68-11,025.81-4,453.12

Finding the Fourth Proportional to 7,989.68, 11,025.81 and 4,453.12

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Solution

The fourth proportional to 7,989.68, 11,025.81 and 4,453.12 is: 6,145.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.68 : 11,025.81 = 4,453.12 : x
  2. Step 2: Convert to fraction form
    7,989.68/11,025.81 = 4,453.12/x
  3. Step 3: Cross multiply
    7,989.68x = 11,025.81 × 4,453.12
  4. Step 4: Simplify right side
    7,989.68x = 49,099,177.63
  5. Step 5: Solve for x
    x = 49,099,177.63/7,989.68
  6. Step 6: Final answer
    x = 6,145.33

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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.