Home / 13,976.24-19,286.36-7,602.78

Finding the Fourth Proportional to 13,976.24, 19,286.36 and 7,602.78

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Solution

The fourth proportional to 13,976.24, 19,286.36 and 7,602.78 is: 10,491.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.24 : 19,286.36 = 7,602.78 : x
  2. Step 2: Convert to fraction form
    13,976.24/19,286.36 = 7,602.78/x
  3. Step 3: Cross multiply
    13,976.24x = 19,286.36 × 7,602.78
  4. Step 4: Simplify right side
    13,976.24x = 146,629,914.07
  5. Step 5: Solve for x
    x = 146,629,914.07/13,976.24
  6. Step 6: Final answer
    x = 10,491.37

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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.