Home / 15,586.80-21,511.62-8,874.60

Finding the Fourth Proportional to 15,586.80, 21,511.62 and 8,874.60

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Solution

The fourth proportional to 15,586.80, 21,511.62 and 8,874.60 is: 12,247.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586.80 : 21,511.62 = 8,874.60 : x
  2. Step 2: Convert to fraction form
    15,586.80/21,511.62 = 8,874.60/x
  3. Step 3: Cross multiply
    15,586.80x = 21,511.62 × 8,874.60
  4. Step 4: Simplify right side
    15,586.80x = 190,907,022.85
  5. Step 5: Solve for x
    x = 190,907,022.85/15,586.80
  6. Step 6: Final answer
    x = 12,247.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.