Home / 7,680.49-11,511.41-4,340.45

Finding the Fourth Proportional to 7,680.49, 11,511.41 and 4,340.45

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Solution

The fourth proportional to 7,680.49, 11,511.41 and 4,340.45 is: 6,505.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.49 : 11,511.41 = 4,340.45 : x
  2. Step 2: Convert to fraction form
    7,680.49/11,511.41 = 4,340.45/x
  3. Step 3: Cross multiply
    7,680.49x = 11,511.41 × 4,340.45
  4. Step 4: Simplify right side
    7,680.49x = 49,964,706.61
  5. Step 5: Solve for x
    x = 49,964,706.61/7,680.49
  6. Step 6: Final answer
    x = 6,505.41

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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.