Home / 12,486.62-17,236.31-7,707.33

Finding the Fourth Proportional to 12,486.62, 17,236.31 and 7,707.33

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Solution

The fourth proportional to 12,486.62, 17,236.31 and 7,707.33 is: 10,639.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.62 : 17,236.31 = 7,707.33 : x
  2. Step 2: Convert to fraction form
    12,486.62/17,236.31 = 7,707.33/x
  3. Step 3: Cross multiply
    12,486.62x = 17,236.31 × 7,707.33
  4. Step 4: Simplify right side
    12,486.62x = 132,845,890.62
  5. Step 5: Solve for x
    x = 132,845,890.62/12,486.62
  6. Step 6: Final answer
    x = 10,639.06

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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.