Home / 13,940.76-19,232.78-7,969.23

Finding the Fourth Proportional to 13,940.76, 19,232.78 and 7,969.23

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Solution

The fourth proportional to 13,940.76, 19,232.78 and 7,969.23 is: 10,994.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.76 : 19,232.78 = 7,969.23 : x
  2. Step 2: Convert to fraction form
    13,940.76/19,232.78 = 7,969.23/x
  3. Step 3: Cross multiply
    13,940.76x = 19,232.78 × 7,969.23
  4. Step 4: Simplify right side
    13,940.76x = 153,270,407.51
  5. Step 5: Solve for x
    x = 153,270,407.51/13,940.76
  6. Step 6: Final answer
    x = 10,994.41

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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.