Home / 12,821.12-19,236-6,246.08

Finding the Fourth Proportional to 12,821.12, 19,236 and 6,246.08

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Solution

The fourth proportional to 12,821.12, 19,236 and 6,246.08 is: 9,371.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.12 : 19,236 = 6,246.08 : x
  2. Step 2: Convert to fraction form
    12,821.12/19,236 = 6,246.08/x
  3. Step 3: Cross multiply
    12,821.12x = 19,236 × 6,246.08
  4. Step 4: Simplify right side
    12,821.12x = 120,149,594.88
  5. Step 5: Solve for x
    x = 120,149,594.88/12,821.12
  6. Step 6: Final answer
    x = 9,371.22

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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.