Home / 12,166.31-18,213.91-10,998.99

Finding the Fourth Proportional to 12,166.31, 18,213.91 and 10,998.99

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Solution

The fourth proportional to 12,166.31, 18,213.91 and 10,998.99 is: 16,466.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.31 : 18,213.91 = 10,998.99 : x
  2. Step 2: Convert to fraction form
    12,166.31/18,213.91 = 10,998.99/x
  3. Step 3: Cross multiply
    12,166.31x = 18,213.91 × 10,998.99
  4. Step 4: Simplify right side
    12,166.31x = 200,334,613.95
  5. Step 5: Solve for x
    x = 200,334,613.95/12,166.31
  6. Step 6: Final answer
    x = 16,466.34

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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.