Home / 8,420.26-12,629.55-2,576.92

Finding the Fourth Proportional to 8,420.26, 12,629.55 and 2,576.92

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Solution

The fourth proportional to 8,420.26, 12,629.55 and 2,576.92 is: 3,865.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420.26 : 12,629.55 = 2,576.92 : x
  2. Step 2: Convert to fraction form
    8,420.26/12,629.55 = 2,576.92/x
  3. Step 3: Cross multiply
    8,420.26x = 12,629.55 × 2,576.92
  4. Step 4: Simplify right side
    8,420.26x = 32,545,339.99
  5. Step 5: Solve for x
    x = 32,545,339.99/8,420.26
  6. Step 6: Final answer
    x = 3,865.12

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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.