Home / 8,283.19-12,421.74-2,734.89

Finding the Fourth Proportional to 8,283.19, 12,421.74 and 2,734.89

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Solution

The fourth proportional to 8,283.19, 12,421.74 and 2,734.89 is: 4,101.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,283.19 : 12,421.74 = 2,734.89 : x
  2. Step 2: Convert to fraction form
    8,283.19/12,421.74 = 2,734.89/x
  3. Step 3: Cross multiply
    8,283.19x = 12,421.74 × 2,734.89
  4. Step 4: Simplify right side
    8,283.19x = 33,972,092.51
  5. Step 5: Solve for x
    x = 33,972,092.51/8,283.19
  6. Step 6: Final answer
    x = 4,101.33

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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.