Home / 12,069.82-18,109.73-6,516.64

Finding the Fourth Proportional to 12,069.82, 18,109.73 and 6,516.64

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Solution

The fourth proportional to 12,069.82, 18,109.73 and 6,516.64 is: 9,777.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069.82 : 18,109.73 = 6,516.64 : x
  2. Step 2: Convert to fraction form
    12,069.82/18,109.73 = 6,516.64/x
  3. Step 3: Cross multiply
    12,069.82x = 18,109.73 × 6,516.64
  4. Step 4: Simplify right side
    12,069.82x = 118,014,545.63
  5. Step 5: Solve for x
    x = 118,014,545.63/12,069.82
  6. Step 6: Final answer
    x = 9,777.66

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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.