Home / 8,428.37-12,642.57-2,584.98

Finding the Fourth Proportional to 8,428.37, 12,642.57 and 2,584.98

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Solution

The fourth proportional to 8,428.37, 12,642.57 and 2,584.98 is: 3,877.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.37 : 12,642.57 = 2,584.98 : x
  2. Step 2: Convert to fraction form
    8,428.37/12,642.57 = 2,584.98/x
  3. Step 3: Cross multiply
    8,428.37x = 12,642.57 × 2,584.98
  4. Step 4: Simplify right side
    8,428.37x = 32,680,790.60
  5. Step 5: Solve for x
    x = 32,680,790.60/8,428.37
  6. Step 6: Final answer
    x = 3,877.48

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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.