Home / 8,021.85-11,069.95-4,485.39

Finding the Fourth Proportional to 8,021.85, 11,069.95 and 4,485.39

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Solution

The fourth proportional to 8,021.85, 11,069.95 and 4,485.39 is: 6,189.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021.85 : 11,069.95 = 4,485.39 : x
  2. Step 2: Convert to fraction form
    8,021.85/11,069.95 = 4,485.39/x
  3. Step 3: Cross multiply
    8,021.85x = 11,069.95 × 4,485.39
  4. Step 4: Simplify right side
    8,021.85x = 49,653,043.03
  5. Step 5: Solve for x
    x = 49,653,043.03/8,021.85
  6. Step 6: Final answer
    x = 6,189.72

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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.