Home / 13,975.44-21,046.36-12,604.56

Finding the Fourth Proportional to 13,975.44, 21,046.36 and 12,604.56

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Solution

The fourth proportional to 13,975.44, 21,046.36 and 12,604.56 is: 18,981.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.44 : 21,046.36 = 12,604.56 : x
  2. Step 2: Convert to fraction form
    13,975.44/21,046.36 = 12,604.56/x
  3. Step 3: Cross multiply
    13,975.44x = 21,046.36 × 12,604.56
  4. Step 4: Simplify right side
    13,975.44x = 265,280,107.40
  5. Step 5: Solve for x
    x = 265,280,107.40/13,975.44
  6. Step 6: Final answer
    x = 18,981.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.