Home / 16,982.84-25,479.12-8,656.04

Finding the Fourth Proportional to 16,982.84, 25,479.12 and 8,656.04

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Solution

The fourth proportional to 16,982.84, 25,479.12 and 8,656.04 is: 12,986.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,982.84 : 25,479.12 = 8,656.04 : x
  2. Step 2: Convert to fraction form
    16,982.84/25,479.12 = 8,656.04/x
  3. Step 3: Cross multiply
    16,982.84x = 25,479.12 × 8,656.04
  4. Step 4: Simplify right side
    16,982.84x = 220,548,281.88
  5. Step 5: Solve for x
    x = 220,548,281.88/16,982.84
  6. Step 6: Final answer
    x = 12,986.54

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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.