Home / 8,521.14-12,745.26-7,106.88

Finding the Fourth Proportional to 8,521.14, 12,745.26 and 7,106.88

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Solution

The fourth proportional to 8,521.14, 12,745.26 and 7,106.88 is: 10,629.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.14 : 12,745.26 = 7,106.88 : x
  2. Step 2: Convert to fraction form
    8,521.14/12,745.26 = 7,106.88/x
  3. Step 3: Cross multiply
    8,521.14x = 12,745.26 × 7,106.88
  4. Step 4: Simplify right side
    8,521.14x = 90,579,033.39
  5. Step 5: Solve for x
    x = 90,579,033.39/8,521.14
  6. Step 6: Final answer
    x = 10,629.92

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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.