Home / 8,786.67-13,187.80-4,109.23

Finding the Fourth Proportional to 8,786.67, 13,187.80 and 4,109.23

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Solution

The fourth proportional to 8,786.67, 13,187.80 and 4,109.23 is: 6,167.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.67 : 13,187.80 = 4,109.23 : x
  2. Step 2: Convert to fraction form
    8,786.67/13,187.80 = 4,109.23/x
  3. Step 3: Cross multiply
    8,786.67x = 13,187.80 × 4,109.23
  4. Step 4: Simplify right side
    8,786.67x = 54,191,637.46
  5. Step 5: Solve for x
    x = 54,191,637.46/8,786.67
  6. Step 6: Final answer
    x = 6,167.48

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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.