Home / 8,428.08-12,642.68-2,584.72

Finding the Fourth Proportional to 8,428.08, 12,642.68 and 2,584.72

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Solution

The fourth proportional to 8,428.08, 12,642.68 and 2,584.72 is: 3,877.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.08 : 12,642.68 = 2,584.72 : x
  2. Step 2: Convert to fraction form
    8,428.08/12,642.68 = 2,584.72/x
  3. Step 3: Cross multiply
    8,428.08x = 12,642.68 × 2,584.72
  4. Step 4: Simplify right side
    8,428.08x = 32,677,787.85
  5. Step 5: Solve for x
    x = 32,677,787.85/8,428.08
  6. Step 6: Final answer
    x = 3,877.25

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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.