Home / 12,399.77-18,599.81-3,634.86

Finding the Fourth Proportional to 12,399.77, 18,599.81 and 3,634.86

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Solution

The fourth proportional to 12,399.77, 18,599.81 and 3,634.86 is: 5,452.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.77 : 18,599.81 = 3,634.86 : x
  2. Step 2: Convert to fraction form
    12,399.77/18,599.81 = 3,634.86/x
  3. Step 3: Cross multiply
    12,399.77x = 18,599.81 × 3,634.86
  4. Step 4: Simplify right side
    12,399.77x = 67,607,705.38
  5. Step 5: Solve for x
    x = 67,607,705.38/12,399.77
  6. Step 6: Final answer
    x = 5,452.34

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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.