Home / 12,629.84-17,409.33-8,644.03

Finding the Fourth Proportional to 12,629.84, 17,409.33 and 8,644.03

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Solution

The fourth proportional to 12,629.84, 17,409.33 and 8,644.03 is: 11,915.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.84 : 17,409.33 = 8,644.03 : x
  2. Step 2: Convert to fraction form
    12,629.84/17,409.33 = 8,644.03/x
  3. Step 3: Cross multiply
    12,629.84x = 17,409.33 × 8,644.03
  4. Step 4: Simplify right side
    12,629.84x = 150,486,727.28
  5. Step 5: Solve for x
    x = 150,486,727.28/12,629.84
  6. Step 6: Final answer
    x = 11,915.18

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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.