Home / 12,884.08-19,428.63-12,708.44

Finding the Fourth Proportional to 12,884.08, 19,428.63 and 12,708.44

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Solution

The fourth proportional to 12,884.08, 19,428.63 and 12,708.44 is: 19,163.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,884.08 : 19,428.63 = 12,708.44 : x
  2. Step 2: Convert to fraction form
    12,884.08/19,428.63 = 12,708.44/x
  3. Step 3: Cross multiply
    12,884.08x = 19,428.63 × 12,708.44
  4. Step 4: Simplify right side
    12,884.08x = 246,907,578.64
  5. Step 5: Solve for x
    x = 246,907,578.64/12,884.08
  6. Step 6: Final answer
    x = 19,163.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.