Home / 8,118.36-11,197.98-5,319

Finding the Fourth Proportional to 8,118.36, 11,197.98 and 5,319

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Solution

The fourth proportional to 8,118.36, 11,197.98 and 5,319 is: 7,336.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.36 : 11,197.98 = 5,319 : x
  2. Step 2: Convert to fraction form
    8,118.36/11,197.98 = 5,319/x
  3. Step 3: Cross multiply
    8,118.36x = 11,197.98 × 5,319
  4. Step 4: Simplify right side
    8,118.36x = 59,562,055.62
  5. Step 5: Solve for x
    x = 59,562,055.62/8,118.36
  6. Step 6: Final answer
    x = 7,336.71

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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.