Home / 10,185.75-15,279.21-3,946.77

Finding the Fourth Proportional to 10,185.75, 15,279.21 and 3,946.77

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Solution

The fourth proportional to 10,185.75, 15,279.21 and 3,946.77 is: 5,920.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,185.75 : 15,279.21 = 3,946.77 : x
  2. Step 2: Convert to fraction form
    10,185.75/15,279.21 = 3,946.77/x
  3. Step 3: Cross multiply
    10,185.75x = 15,279.21 × 3,946.77
  4. Step 4: Simplify right side
    10,185.75x = 60,303,527.65
  5. Step 5: Solve for x
    x = 60,303,527.65/10,185.75
  6. Step 6: Final answer
    x = 5,920.38

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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.