Home / 12,974.48-19,461.71-4,209.39

Finding the Fourth Proportional to 12,974.48, 19,461.71 and 4,209.39

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Solution

The fourth proportional to 12,974.48, 19,461.71 and 4,209.39 is: 6,314.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,974.48 : 19,461.71 = 4,209.39 : x
  2. Step 2: Convert to fraction form
    12,974.48/19,461.71 = 4,209.39/x
  3. Step 3: Cross multiply
    12,974.48x = 19,461.71 × 4,209.39
  4. Step 4: Simplify right side
    12,974.48x = 81,921,906.41
  5. Step 5: Solve for x
    x = 81,921,906.41/12,974.48
  6. Step 6: Final answer
    x = 6,314.08

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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.