Home / 6,872.40-10,302.81-4,786.25

Finding the Fourth Proportional to 6,872.40, 10,302.81 and 4,786.25

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Solution

The fourth proportional to 6,872.40, 10,302.81 and 4,786.25 is: 7,175.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.40 : 10,302.81 = 4,786.25 : x
  2. Step 2: Convert to fraction form
    6,872.40/10,302.81 = 4,786.25/x
  3. Step 3: Cross multiply
    6,872.40x = 10,302.81 × 4,786.25
  4. Step 4: Simplify right side
    6,872.40x = 49,311,772.85
  5. Step 5: Solve for x
    x = 49,311,772.85/6,872.40
  6. Step 6: Final answer
    x = 7,175.34

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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.