Home / 12,393.75-18,593.57-4,185.75

Finding the Fourth Proportional to 12,393.75, 18,593.57 and 4,185.75

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Solution

The fourth proportional to 12,393.75, 18,593.57 and 4,185.75 is: 6,279.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.75 : 18,593.57 = 4,185.75 : x
  2. Step 2: Convert to fraction form
    12,393.75/18,593.57 = 4,185.75/x
  3. Step 3: Cross multiply
    12,393.75x = 18,593.57 × 4,185.75
  4. Step 4: Simplify right side
    12,393.75x = 77,828,014.70
  5. Step 5: Solve for x
    x = 77,828,014.70/12,393.75
  6. Step 6: Final answer
    x = 6,279.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.