Home / 13,865.02-20,805.77-5,106.09

Finding the Fourth Proportional to 13,865.02, 20,805.77 and 5,106.09

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Solution

The fourth proportional to 13,865.02, 20,805.77 and 5,106.09 is: 7,662.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.02 : 20,805.77 = 5,106.09 : x
  2. Step 2: Convert to fraction form
    13,865.02/20,805.77 = 5,106.09/x
  3. Step 3: Cross multiply
    13,865.02x = 20,805.77 × 5,106.09
  4. Step 4: Simplify right side
    13,865.02x = 106,236,004.58
  5. Step 5: Solve for x
    x = 106,236,004.58/13,865.02
  6. Step 6: Final answer
    x = 7,662.16

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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.