Home / 13,283.94-19,922.72-3,921.44

Finding the Fourth Proportional to 13,283.94, 19,922.72 and 3,921.44

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Solution

The fourth proportional to 13,283.94, 19,922.72 and 3,921.44 is: 5,881.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.94 : 19,922.72 = 3,921.44 : x
  2. Step 2: Convert to fraction form
    13,283.94/19,922.72 = 3,921.44/x
  3. Step 3: Cross multiply
    13,283.94x = 19,922.72 × 3,921.44
  4. Step 4: Simplify right side
    13,283.94x = 78,125,631.90
  5. Step 5: Solve for x
    x = 78,125,631.90/13,283.94
  6. Step 6: Final answer
    x = 5,881.21

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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.