Home / 12,771.12-19,165.39-4,451.14

Finding the Fourth Proportional to 12,771.12, 19,165.39 and 4,451.14

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Solution

The fourth proportional to 12,771.12, 19,165.39 and 4,451.14 is: 6,679.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.12 : 19,165.39 = 4,451.14 : x
  2. Step 2: Convert to fraction form
    12,771.12/19,165.39 = 4,451.14/x
  3. Step 3: Cross multiply
    12,771.12x = 19,165.39 × 4,451.14
  4. Step 4: Simplify right side
    12,771.12x = 85,307,775.00
  5. Step 5: Solve for x
    x = 85,307,775.00/12,771.12
  6. Step 6: Final answer
    x = 6,679.74

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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.