Home / 12,723.89-19,115.64-12,004.95

Finding the Fourth Proportional to 12,723.89, 19,115.64 and 12,004.95

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Solution

The fourth proportional to 12,723.89, 19,115.64 and 12,004.95 is: 18,035.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,723.89 : 19,115.64 = 12,004.95 : x
  2. Step 2: Convert to fraction form
    12,723.89/19,115.64 = 12,004.95/x
  3. Step 3: Cross multiply
    12,723.89x = 19,115.64 × 12,004.95
  4. Step 4: Simplify right side
    12,723.89x = 229,482,302.42
  5. Step 5: Solve for x
    x = 229,482,302.42/12,723.89
  6. Step 6: Final answer
    x = 18,035.55

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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.