Home / 12,813.80-19,220.06-4,491.24

Finding the Fourth Proportional to 12,813.80, 19,220.06 and 4,491.24

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Solution

The fourth proportional to 12,813.80, 19,220.06 and 4,491.24 is: 6,736.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,813.80 : 19,220.06 = 4,491.24 : x
  2. Step 2: Convert to fraction form
    12,813.80/19,220.06 = 4,491.24/x
  3. Step 3: Cross multiply
    12,813.80x = 19,220.06 × 4,491.24
  4. Step 4: Simplify right side
    12,813.80x = 86,321,902.27
  5. Step 5: Solve for x
    x = 86,321,902.27/12,813.80
  6. Step 6: Final answer
    x = 6,736.64

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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.