Home / 6,823.20-10,239.84-5,072.16

Finding the Fourth Proportional to 6,823.20, 10,239.84 and 5,072.16

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Solution

The fourth proportional to 6,823.20, 10,239.84 and 5,072.16 is: 7,611.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,823.20 : 10,239.84 = 5,072.16 : x
  2. Step 2: Convert to fraction form
    6,823.20/10,239.84 = 5,072.16/x
  3. Step 3: Cross multiply
    6,823.20x = 10,239.84 × 5,072.16
  4. Step 4: Simplify right side
    6,823.20x = 51,938,106.85
  5. Step 5: Solve for x
    x = 51,938,106.85/6,823.20
  6. Step 6: Final answer
    x = 7,611.99

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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.