Home / 12,764.03-19,146.08-3,879.45

Finding the Fourth Proportional to 12,764.03, 19,146.08 and 3,879.45

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Solution

The fourth proportional to 12,764.03, 19,146.08 and 3,879.45 is: 5,819.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,764.03 : 19,146.08 = 3,879.45 : x
  2. Step 2: Convert to fraction form
    12,764.03/19,146.08 = 3,879.45/x
  3. Step 3: Cross multiply
    12,764.03x = 19,146.08 × 3,879.45
  4. Step 4: Simplify right side
    12,764.03x = 74,276,269.75
  5. Step 5: Solve for x
    x = 74,276,269.75/12,764.03
  6. Step 6: Final answer
    x = 5,819.19

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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.