Home / 8,114.45-12,172.12-3,958.00

Finding the Fourth Proportional to 8,114.45, 12,172.12 and 3,958.00

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Solution

The fourth proportional to 8,114.45, 12,172.12 and 3,958.00 is: 5,937.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.45 : 12,172.12 = 3,958.00 : x
  2. Step 2: Convert to fraction form
    8,114.45/12,172.12 = 3,958.00/x
  3. Step 3: Cross multiply
    8,114.45x = 12,172.12 × 3,958.00
  4. Step 4: Simplify right side
    8,114.45x = 48,177,210.63
  5. Step 5: Solve for x
    x = 48,177,210.63/8,114.45
  6. Step 6: Final answer
    x = 5,937.22

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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.