Home / 7,880.46-11,812.35-3,976.62

Finding the Fourth Proportional to 7,880.46, 11,812.35 and 3,976.62

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Solution

The fourth proportional to 7,880.46, 11,812.35 and 3,976.62 is: 5,960.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.46 : 11,812.35 = 3,976.62 : x
  2. Step 2: Convert to fraction form
    7,880.46/11,812.35 = 3,976.62/x
  3. Step 3: Cross multiply
    7,880.46x = 11,812.35 × 3,976.62
  4. Step 4: Simplify right side
    7,880.46x = 46,973,227.26
  5. Step 5: Solve for x
    x = 46,973,227.26/7,880.46
  6. Step 6: Final answer
    x = 5,960.72

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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.