Home / 14,911.28-20,577.18-8,105.00

Finding the Fourth Proportional to 14,911.28, 20,577.18 and 8,105.00

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Solution

The fourth proportional to 14,911.28, 20,577.18 and 8,105.00 is: 11,184.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,911.28 : 20,577.18 = 8,105.00 : x
  2. Step 2: Convert to fraction form
    14,911.28/20,577.18 = 8,105.00/x
  3. Step 3: Cross multiply
    14,911.28x = 20,577.18 × 8,105.00
  4. Step 4: Simplify right side
    14,911.28x = 166,777,941.01
  5. Step 5: Solve for x
    x = 166,777,941.01/14,911.28
  6. Step 6: Final answer
    x = 11,184.69

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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.