Home / 12,629.58-17,428.73-6,887.04

Finding the Fourth Proportional to 12,629.58, 17,428.73 and 6,887.04

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Solution

The fourth proportional to 12,629.58, 17,428.73 and 6,887.04 is: 9,504.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.58 : 17,428.73 = 6,887.04 : x
  2. Step 2: Convert to fraction form
    12,629.58/17,428.73 = 6,887.04/x
  3. Step 3: Cross multiply
    12,629.58x = 17,428.73 × 6,887.04
  4. Step 4: Simplify right side
    12,629.58x = 120,032,326.22
  5. Step 5: Solve for x
    x = 120,032,326.22/12,629.58
  6. Step 6: Final answer
    x = 9,504.06

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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.