Home / 12,694.20-19,031.67-9,926.70

Finding the Fourth Proportional to 12,694.20, 19,031.67 and 9,926.70

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Solution

The fourth proportional to 12,694.20, 19,031.67 and 9,926.70 is: 14,882.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.20 : 19,031.67 = 9,926.70 : x
  2. Step 2: Convert to fraction form
    12,694.20/19,031.67 = 9,926.70/x
  3. Step 3: Cross multiply
    12,694.20x = 19,031.67 × 9,926.70
  4. Step 4: Simplify right side
    12,694.20x = 188,921,678.59
  5. Step 5: Solve for x
    x = 188,921,678.59/12,694.20
  6. Step 6: Final answer
    x = 14,882.52

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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.