Home / 12,724.08-17,558.92-7,418.55

Finding the Fourth Proportional to 12,724.08, 17,558.92 and 7,418.55

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Solution

The fourth proportional to 12,724.08, 17,558.92 and 7,418.55 is: 10,237.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.08 : 17,558.92 = 7,418.55 : x
  2. Step 2: Convert to fraction form
    12,724.08/17,558.92 = 7,418.55/x
  3. Step 3: Cross multiply
    12,724.08x = 17,558.92 × 7,418.55
  4. Step 4: Simplify right side
    12,724.08x = 130,261,725.97
  5. Step 5: Solve for x
    x = 130,261,725.97/12,724.08
  6. Step 6: Final answer
    x = 10,237.42

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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.