Home / 12,852.93-17,736.66-7,187.70

Finding the Fourth Proportional to 12,852.93, 17,736.66 and 7,187.70

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Solution

The fourth proportional to 12,852.93, 17,736.66 and 7,187.70 is: 9,918.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,852.93 : 17,736.66 = 7,187.70 : x
  2. Step 2: Convert to fraction form
    12,852.93/17,736.66 = 7,187.70/x
  3. Step 3: Cross multiply
    12,852.93x = 17,736.66 × 7,187.70
  4. Step 4: Simplify right side
    12,852.93x = 127,485,791.08
  5. Step 5: Solve for x
    x = 127,485,791.08/12,852.93
  6. Step 6: Final answer
    x = 9,918.81

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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.