Home / 13,176.03-18,187.16-8,703.75

Finding the Fourth Proportional to 13,176.03, 18,187.16 and 8,703.75

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Solution

The fourth proportional to 13,176.03, 18,187.16 and 8,703.75 is: 12,013.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.03 : 18,187.16 = 8,703.75 : x
  2. Step 2: Convert to fraction form
    13,176.03/18,187.16 = 8,703.75/x
  3. Step 3: Cross multiply
    13,176.03x = 18,187.16 × 8,703.75
  4. Step 4: Simplify right side
    13,176.03x = 158,296,450.33
  5. Step 5: Solve for x
    x = 158,296,450.33/13,176.03
  6. Step 6: Final answer
    x = 12,013.97

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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.