Home / 14,805.44-20,431.77-8,091.35

Finding the Fourth Proportional to 14,805.44, 20,431.77 and 8,091.35

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Solution

The fourth proportional to 14,805.44, 20,431.77 and 8,091.35 is: 11,166.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,805.44 : 20,431.77 = 8,091.35 : x
  2. Step 2: Convert to fraction form
    14,805.44/20,431.77 = 8,091.35/x
  3. Step 3: Cross multiply
    14,805.44x = 20,431.77 × 8,091.35
  4. Step 4: Simplify right side
    14,805.44x = 165,320,459.57
  5. Step 5: Solve for x
    x = 165,320,459.57/14,805.44
  6. Step 6: Final answer
    x = 11,166.20

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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.