Home / 13,908.75-19,194.09-7,621.14

Finding the Fourth Proportional to 13,908.75, 19,194.09 and 7,621.14

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Solution

The fourth proportional to 13,908.75, 19,194.09 and 7,621.14 is: 10,517.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.75 : 19,194.09 = 7,621.14 : x
  2. Step 2: Convert to fraction form
    13,908.75/19,194.09 = 7,621.14/x
  3. Step 3: Cross multiply
    13,908.75x = 19,194.09 × 7,621.14
  4. Step 4: Simplify right side
    13,908.75x = 146,280,847.06
  5. Step 5: Solve for x
    x = 146,280,847.06/13,908.75
  6. Step 6: Final answer
    x = 10,517.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.