Home / 16,872.23-25,290.37-12,699.34

Finding the Fourth Proportional to 16,872.23, 25,290.37 and 12,699.34

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Solution

The fourth proportional to 16,872.23, 25,290.37 and 12,699.34 is: 19,035.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872.23 : 25,290.37 = 12,699.34 : x
  2. Step 2: Convert to fraction form
    16,872.23/25,290.37 = 12,699.34/x
  3. Step 3: Cross multiply
    16,872.23x = 25,290.37 × 12,699.34
  4. Step 4: Simplify right side
    16,872.23x = 321,170,960.00
  5. Step 5: Solve for x
    x = 321,170,960.00/16,872.23
  6. Step 6: Final answer
    x = 19,035.48

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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.