Home / 12,936.90-17,847.06-7,629.24

Finding the Fourth Proportional to 12,936.90, 17,847.06 and 7,629.24

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Solution

The fourth proportional to 12,936.90, 17,847.06 and 7,629.24 is: 10,524.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936.90 : 17,847.06 = 7,629.24 : x
  2. Step 2: Convert to fraction form
    12,936.90/17,847.06 = 7,629.24/x
  3. Step 3: Cross multiply
    12,936.90x = 17,847.06 × 7,629.24
  4. Step 4: Simplify right side
    12,936.90x = 136,159,504.03
  5. Step 5: Solve for x
    x = 136,159,504.03/12,936.90
  6. Step 6: Final answer
    x = 10,524.89

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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.