Home / 13,205.54-19,670.72-12,504.33

Finding the Fourth Proportional to 13,205.54, 19,670.72 and 12,504.33

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Solution

The fourth proportional to 13,205.54, 19,670.72 and 12,504.33 is: 18,626.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.54 : 19,670.72 = 12,504.33 : x
  2. Step 2: Convert to fraction form
    13,205.54/19,670.72 = 12,504.33/x
  3. Step 3: Cross multiply
    13,205.54x = 19,670.72 × 12,504.33
  4. Step 4: Simplify right side
    13,205.54x = 245,969,174.22
  5. Step 5: Solve for x
    x = 245,969,174.22/13,205.54
  6. Step 6: Final answer
    x = 18,626.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.