Home / 19,676.45-27,163.35-12,513.57

Finding the Fourth Proportional to 19,676.45, 27,163.35 and 12,513.57

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Solution

The fourth proportional to 19,676.45, 27,163.35 and 12,513.57 is: 17,274.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,676.45 : 27,163.35 = 12,513.57 : x
  2. Step 2: Convert to fraction form
    19,676.45/27,163.35 = 12,513.57/x
  3. Step 3: Cross multiply
    19,676.45x = 27,163.35 × 12,513.57
  4. Step 4: Simplify right side
    19,676.45x = 339,910,419.09
  5. Step 5: Solve for x
    x = 339,910,419.09/19,676.45
  6. Step 6: Final answer
    x = 17,274.99

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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.