Home / 12,419.46-18,628.29-3,653.64

Finding the Fourth Proportional to 12,419.46, 18,628.29 and 3,653.64

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Solution

The fourth proportional to 12,419.46, 18,628.29 and 3,653.64 is: 5,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419.46 : 18,628.29 = 3,653.64 : x
  2. Step 2: Convert to fraction form
    12,419.46/18,628.29 = 3,653.64/x
  3. Step 3: Cross multiply
    12,419.46x = 18,628.29 × 3,653.64
  4. Step 4: Simplify right side
    12,419.46x = 68,061,065.48
  5. Step 5: Solve for x
    x = 68,061,065.48/12,419.46
  6. Step 6: Final answer
    x = 5,480.20

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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.