Home / 8,721.63-13,083.60-2,796.54

Finding the Fourth Proportional to 8,721.63, 13,083.60 and 2,796.54

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Solution

The fourth proportional to 8,721.63, 13,083.60 and 2,796.54 is: 4,195.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.63 : 13,083.60 = 2,796.54 : x
  2. Step 2: Convert to fraction form
    8,721.63/13,083.60 = 2,796.54/x
  3. Step 3: Cross multiply
    8,721.63x = 13,083.60 × 2,796.54
  4. Step 4: Simplify right side
    8,721.63x = 36,588,810.74
  5. Step 5: Solve for x
    x = 36,588,810.74/8,721.63
  6. Step 6: Final answer
    x = 4,195.18

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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.