Home / 12,975.88-17,906.84-7,387.24

Finding the Fourth Proportional to 12,975.88, 17,906.84 and 7,387.24

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Solution

The fourth proportional to 12,975.88, 17,906.84 and 7,387.24 is: 10,194.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.88 : 17,906.84 = 7,387.24 : x
  2. Step 2: Convert to fraction form
    12,975.88/17,906.84 = 7,387.24/x
  3. Step 3: Cross multiply
    12,975.88x = 17,906.84 × 7,387.24
  4. Step 4: Simplify right side
    12,975.88x = 132,282,124.72
  5. Step 5: Solve for x
    x = 132,282,124.72/12,975.88
  6. Step 6: Final answer
    x = 10,194.46

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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.