Home / 8,629.28-12,944.21-2,388.77

Finding the Fourth Proportional to 8,629.28, 12,944.21 and 2,388.77

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Solution

The fourth proportional to 8,629.28, 12,944.21 and 2,388.77 is: 3,583.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.28 : 12,944.21 = 2,388.77 : x
  2. Step 2: Convert to fraction form
    8,629.28/12,944.21 = 2,388.77/x
  3. Step 3: Cross multiply
    8,629.28x = 12,944.21 × 2,388.77
  4. Step 4: Simplify right side
    8,629.28x = 30,920,740.52
  5. Step 5: Solve for x
    x = 30,920,740.52/8,629.28
  6. Step 6: Final answer
    x = 3,583.24

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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.