Home / 8,576.99-12,858.09-3,315.70

Finding the Fourth Proportional to 8,576.99, 12,858.09 and 3,315.70

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Solution

The fourth proportional to 8,576.99, 12,858.09 and 3,315.70 is: 4,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,576.99 : 12,858.09 = 3,315.70 : x
  2. Step 2: Convert to fraction form
    8,576.99/12,858.09 = 3,315.70/x
  3. Step 3: Cross multiply
    8,576.99x = 12,858.09 × 3,315.70
  4. Step 4: Simplify right side
    8,576.99x = 42,633,504.72
  5. Step 5: Solve for x
    x = 42,633,504.72/8,576.99
  6. Step 6: Final answer
    x = 4,970.68

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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.