Home / 8,542.36-11,786.45-5,185.09

Finding the Fourth Proportional to 8,542.36, 11,786.45 and 5,185.09

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Solution

The fourth proportional to 8,542.36, 11,786.45 and 5,185.09 is: 7,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,542.36 : 11,786.45 = 5,185.09 : x
  2. Step 2: Convert to fraction form
    8,542.36/11,786.45 = 5,185.09/x
  3. Step 3: Cross multiply
    8,542.36x = 11,786.45 × 5,185.09
  4. Step 4: Simplify right side
    8,542.36x = 61,113,778.11
  5. Step 5: Solve for x
    x = 61,113,778.11/8,542.36
  6. Step 6: Final answer
    x = 7,154.20

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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.