Home / 12,722.45-19,083.69-3,957.36

Finding the Fourth Proportional to 12,722.45, 19,083.69 and 3,957.36

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Solution

The fourth proportional to 12,722.45, 19,083.69 and 3,957.36 is: 5,936.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722.45 : 19,083.69 = 3,957.36 : x
  2. Step 2: Convert to fraction form
    12,722.45/19,083.69 = 3,957.36/x
  3. Step 3: Cross multiply
    12,722.45x = 19,083.69 × 3,957.36
  4. Step 4: Simplify right side
    12,722.45x = 75,521,031.46
  5. Step 5: Solve for x
    x = 75,521,031.46/12,722.45
  6. Step 6: Final answer
    x = 5,936.05

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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.