Home / 12,811.16-19,216.04-3,926.52

Finding the Fourth Proportional to 12,811.16, 19,216.04 and 3,926.52

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Solution

The fourth proportional to 12,811.16, 19,216.04 and 3,926.52 is: 5,889.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.16 : 19,216.04 = 3,926.52 : x
  2. Step 2: Convert to fraction form
    12,811.16/19,216.04 = 3,926.52/x
  3. Step 3: Cross multiply
    12,811.16x = 19,216.04 × 3,926.52
  4. Step 4: Simplify right side
    12,811.16x = 75,452,069.30
  5. Step 5: Solve for x
    x = 75,452,069.30/12,811.16
  6. Step 6: Final answer
    x = 5,889.56

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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.