Home / 12,811.12-19,216.20-4,046.56

Finding the Fourth Proportional to 12,811.12, 19,216.20 and 4,046.56

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Solution

The fourth proportional to 12,811.12, 19,216.20 and 4,046.56 is: 6,069.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.12 : 19,216.20 = 4,046.56 : x
  2. Step 2: Convert to fraction form
    12,811.12/19,216.20 = 4,046.56/x
  3. Step 3: Cross multiply
    12,811.12x = 19,216.20 × 4,046.56
  4. Step 4: Simplify right side
    12,811.12x = 77,759,506.27
  5. Step 5: Solve for x
    x = 77,759,506.27/12,811.12
  6. Step 6: Final answer
    x = 6,069.69

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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.