Home / 12,405.74-18,604.67-4,083.89

Finding the Fourth Proportional to 12,405.74, 18,604.67 and 4,083.89

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Solution

The fourth proportional to 12,405.74, 18,604.67 and 4,083.89 is: 6,124.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405.74 : 18,604.67 = 4,083.89 : x
  2. Step 2: Convert to fraction form
    12,405.74/18,604.67 = 4,083.89/x
  3. Step 3: Cross multiply
    12,405.74x = 18,604.67 × 4,083.89
  4. Step 4: Simplify right side
    12,405.74x = 75,979,312.32
  5. Step 5: Solve for x
    x = 75,979,312.32/12,405.74
  6. Step 6: Final answer
    x = 6,124.53

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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.