Home / 8,576.40-12,863.52-3,645.12

Finding the Fourth Proportional to 8,576.40, 12,863.52 and 3,645.12

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Solution

The fourth proportional to 8,576.40, 12,863.52 and 3,645.12 is: 5,467.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,576.40 : 12,863.52 = 3,645.12 : x
  2. Step 2: Convert to fraction form
    8,576.40/12,863.52 = 3,645.12/x
  3. Step 3: Cross multiply
    8,576.40x = 12,863.52 × 3,645.12
  4. Step 4: Simplify right side
    8,576.40x = 46,889,074.02
  5. Step 5: Solve for x
    x = 46,889,074.02/8,576.40
  6. Step 6: Final answer
    x = 5,467.22

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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.