Home / 12,712.91-19,071.18-4,813.29

Finding the Fourth Proportional to 12,712.91, 19,071.18 and 4,813.29

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Solution

The fourth proportional to 12,712.91, 19,071.18 and 4,813.29 is: 7,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,712.91 : 19,071.18 = 4,813.29 : x
  2. Step 2: Convert to fraction form
    12,712.91/19,071.18 = 4,813.29/x
  3. Step 3: Cross multiply
    12,712.91x = 19,071.18 × 4,813.29
  4. Step 4: Simplify right side
    12,712.91x = 91,795,119.98
  5. Step 5: Solve for x
    x = 91,795,119.98/12,712.91
  6. Step 6: Final answer
    x = 7,220.63

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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.