Home / 8,208.23-12,307.49-3,280.19

Finding the Fourth Proportional to 8,208.23, 12,307.49 and 3,280.19

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Solution

The fourth proportional to 8,208.23, 12,307.49 and 3,280.19 is: 4,918.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.23 : 12,307.49 = 3,280.19 : x
  2. Step 2: Convert to fraction form
    8,208.23/12,307.49 = 3,280.19/x
  3. Step 3: Cross multiply
    8,208.23x = 12,307.49 × 3,280.19
  4. Step 4: Simplify right side
    8,208.23x = 40,370,889.22
  5. Step 5: Solve for x
    x = 40,370,889.22/8,208.23
  6. Step 6: Final answer
    x = 4,918.34

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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.