Home / 12,686.84-19,032.09-3,922.44

Finding the Fourth Proportional to 12,686.84, 19,032.09 and 3,922.44

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Solution

The fourth proportional to 12,686.84, 19,032.09 and 3,922.44 is: 5,884.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,686.84 : 19,032.09 = 3,922.44 : x
  2. Step 2: Convert to fraction form
    12,686.84/19,032.09 = 3,922.44/x
  3. Step 3: Cross multiply
    12,686.84x = 19,032.09 × 3,922.44
  4. Step 4: Simplify right side
    12,686.84x = 74,652,211.49
  5. Step 5: Solve for x
    x = 74,652,211.49/12,686.84
  6. Step 6: Final answer
    x = 5,884.22

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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.