Home / 12,821.48-19,232.92-4,055.74

Finding the Fourth Proportional to 12,821.48, 19,232.92 and 4,055.74

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Solution

The fourth proportional to 12,821.48, 19,232.92 and 4,055.74 is: 6,083.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.48 : 19,232.92 = 4,055.74 : x
  2. Step 2: Convert to fraction form
    12,821.48/19,232.92 = 4,055.74/x
  3. Step 3: Cross multiply
    12,821.48x = 19,232.92 × 4,055.74
  4. Step 4: Simplify right side
    12,821.48x = 78,003,722.96
  5. Step 5: Solve for x
    x = 78,003,722.96/12,821.48
  6. Step 6: Final answer
    x = 6,083.83

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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.