Home / 12,921.44-17,833.20-7,334.24

Finding the Fourth Proportional to 12,921.44, 17,833.20 and 7,334.24

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Solution

The fourth proportional to 12,921.44, 17,833.20 and 7,334.24 is: 10,122.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921.44 : 17,833.20 = 7,334.24 : x
  2. Step 2: Convert to fraction form
    12,921.44/17,833.20 = 7,334.24/x
  3. Step 3: Cross multiply
    12,921.44x = 17,833.20 × 7,334.24
  4. Step 4: Simplify right side
    12,921.44x = 130,792,968.77
  5. Step 5: Solve for x
    x = 130,792,968.77/12,921.44
  6. Step 6: Final answer
    x = 10,122.17

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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.