Home / 12,916.21-19,374.54-3,556.18

Finding the Fourth Proportional to 12,916.21, 19,374.54 and 3,556.18

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Solution

The fourth proportional to 12,916.21, 19,374.54 and 3,556.18 is: 5,334.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916.21 : 19,374.54 = 3,556.18 : x
  2. Step 2: Convert to fraction form
    12,916.21/19,374.54 = 3,556.18/x
  3. Step 3: Cross multiply
    12,916.21x = 19,374.54 × 3,556.18
  4. Step 4: Simplify right side
    12,916.21x = 68,899,351.66
  5. Step 5: Solve for x
    x = 68,899,351.66/12,916.21
  6. Step 6: Final answer
    x = 5,334.33

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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.