Home / 12,914.84-19,371.57-4,149.07

Finding the Fourth Proportional to 12,914.84, 19,371.57 and 4,149.07

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Solution

The fourth proportional to 12,914.84, 19,371.57 and 4,149.07 is: 6,223.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,914.84 : 19,371.57 = 4,149.07 : x
  2. Step 2: Convert to fraction form
    12,914.84/19,371.57 = 4,149.07/x
  3. Step 3: Cross multiply
    12,914.84x = 19,371.57 × 4,149.07
  4. Step 4: Simplify right side
    12,914.84x = 80,373,935.95
  5. Step 5: Solve for x
    x = 80,373,935.95/12,914.84
  6. Step 6: Final answer
    x = 6,223.38

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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.