Home / 13,922.37-19,213.47-7,954.49

Finding the Fourth Proportional to 13,922.37, 19,213.47 and 7,954.49

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Solution

The fourth proportional to 13,922.37, 19,213.47 and 7,954.49 is: 10,977.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.37 : 19,213.47 = 7,954.49 : x
  2. Step 2: Convert to fraction form
    13,922.37/19,213.47 = 7,954.49/x
  3. Step 3: Cross multiply
    13,922.37x = 19,213.47 × 7,954.49
  4. Step 4: Simplify right side
    13,922.37x = 152,833,403.01
  5. Step 5: Solve for x
    x = 152,833,403.01/13,922.37
  6. Step 6: Final answer
    x = 10,977.54

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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.