Home / 17,966.88-26,875.30-12,629.72

Finding the Fourth Proportional to 17,966.88, 26,875.30 and 12,629.72

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Solution

The fourth proportional to 17,966.88, 26,875.30 and 12,629.72 is: 18,891.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,966.88 : 26,875.30 = 12,629.72 : x
  2. Step 2: Convert to fraction form
    17,966.88/26,875.30 = 12,629.72/x
  3. Step 3: Cross multiply
    17,966.88x = 26,875.30 × 12,629.72
  4. Step 4: Simplify right side
    17,966.88x = 339,427,513.92
  5. Step 5: Solve for x
    x = 339,427,513.92/17,966.88
  6. Step 6: Final answer
    x = 18,891.85

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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.