Home / 12,739.28-19,104.05-3,852.77

Finding the Fourth Proportional to 12,739.28, 19,104.05 and 3,852.77

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Solution

The fourth proportional to 12,739.28, 19,104.05 and 3,852.77 is: 5,777.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.28 : 19,104.05 = 3,852.77 : x
  2. Step 2: Convert to fraction form
    12,739.28/19,104.05 = 3,852.77/x
  3. Step 3: Cross multiply
    12,739.28x = 19,104.05 × 3,852.77
  4. Step 4: Simplify right side
    12,739.28x = 73,603,424.83
  5. Step 5: Solve for x
    x = 73,603,424.83/12,739.28
  6. Step 6: Final answer
    x = 5,777.68

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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.