Home / 12,926.21-19,351.04-7,979.94

Finding the Fourth Proportional to 12,926.21, 19,351.04 and 7,979.94

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Solution

The fourth proportional to 12,926.21, 19,351.04 and 7,979.94 is: 11,946.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,926.21 : 19,351.04 = 7,979.94 : x
  2. Step 2: Convert to fraction form
    12,926.21/19,351.04 = 7,979.94/x
  3. Step 3: Cross multiply
    12,926.21x = 19,351.04 × 7,979.94
  4. Step 4: Simplify right side
    12,926.21x = 154,420,098.24
  5. Step 5: Solve for x
    x = 154,420,098.24/12,926.21
  6. Step 6: Final answer
    x = 11,946.28

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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.