Home / 13,923.12-19,213.56-7,954.41

Finding the Fourth Proportional to 13,923.12, 19,213.56 and 7,954.41

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Solution

The fourth proportional to 13,923.12, 19,213.56 and 7,954.41 is: 10,976.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.12 : 19,213.56 = 7,954.41 : x
  2. Step 2: Convert to fraction form
    13,923.12/19,213.56 = 7,954.41/x
  3. Step 3: Cross multiply
    13,923.12x = 19,213.56 × 7,954.41
  4. Step 4: Simplify right side
    13,923.12x = 152,832,533.80
  5. Step 5: Solve for x
    x = 152,832,533.80/13,923.12
  6. Step 6: Final answer
    x = 10,976.89

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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.