Home / 15,636.96-21,578.99-8,563.37

Finding the Fourth Proportional to 15,636.96, 21,578.99 and 8,563.37

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Solution

The fourth proportional to 15,636.96, 21,578.99 and 8,563.37 is: 11,817.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636.96 : 21,578.99 = 8,563.37 : x
  2. Step 2: Convert to fraction form
    15,636.96/21,578.99 = 8,563.37/x
  3. Step 3: Cross multiply
    15,636.96x = 21,578.99 × 8,563.37
  4. Step 4: Simplify right side
    15,636.96x = 184,788,724.88
  5. Step 5: Solve for x
    x = 184,788,724.88/15,636.96
  6. Step 6: Final answer
    x = 11,817.43

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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.