Home / 12,818.82-19,228.39-4,054.50

Finding the Fourth Proportional to 12,818.82, 19,228.39 and 4,054.50

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Solution

The fourth proportional to 12,818.82, 19,228.39 and 4,054.50 is: 6,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,818.82 : 19,228.39 = 4,054.50 : x
  2. Step 2: Convert to fraction form
    12,818.82/19,228.39 = 4,054.50/x
  3. Step 3: Cross multiply
    12,818.82x = 19,228.39 × 4,054.50
  4. Step 4: Simplify right side
    12,818.82x = 77,961,507.26
  5. Step 5: Solve for x
    x = 77,961,507.26/12,818.82
  6. Step 6: Final answer
    x = 6,081.80

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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.