Home / 12,940.24-19,411.08-3,706

Finding the Fourth Proportional to 12,940.24, 19,411.08 and 3,706

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Solution

The fourth proportional to 12,940.24, 19,411.08 and 3,706 is: 5,559.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940.24 : 19,411.08 = 3,706 : x
  2. Step 2: Convert to fraction form
    12,940.24/19,411.08 = 3,706/x
  3. Step 3: Cross multiply
    12,940.24x = 19,411.08 × 3,706
  4. Step 4: Simplify right side
    12,940.24x = 71,937,462.48
  5. Step 5: Solve for x
    x = 71,937,462.48/12,940.24
  6. Step 6: Final answer
    x = 5,559.21

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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.