Home / 13,908.25-19,193.79-7,621.03

Finding the Fourth Proportional to 13,908.25, 19,193.79 and 7,621.03

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Solution

The fourth proportional to 13,908.25, 19,193.79 and 7,621.03 is: 10,517.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.25 : 19,193.79 = 7,621.03 : x
  2. Step 2: Convert to fraction form
    13,908.25/19,193.79 = 7,621.03/x
  3. Step 3: Cross multiply
    13,908.25x = 19,193.79 × 7,621.03
  4. Step 4: Simplify right side
    13,908.25x = 146,276,449.40
  5. Step 5: Solve for x
    x = 146,276,449.40/13,908.25
  6. Step 6: Final answer
    x = 10,517.24

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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.