Home / 6,960.08-10,440.12-3,880.40

Finding the Fourth Proportional to 6,960.08, 10,440.12 and 3,880.40

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Solution

The fourth proportional to 6,960.08, 10,440.12 and 3,880.40 is: 5,820.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,960.08 : 10,440.12 = 3,880.40 : x
  2. Step 2: Convert to fraction form
    6,960.08/10,440.12 = 3,880.40/x
  3. Step 3: Cross multiply
    6,960.08x = 10,440.12 × 3,880.40
  4. Step 4: Simplify right side
    6,960.08x = 40,511,841.65
  5. Step 5: Solve for x
    x = 40,511,841.65/6,960.08
  6. Step 6: Final answer
    x = 5,820.60

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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.