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Finding the Fourth Proportional to 12,045.14, 18,063.22 and 4,145.46

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Solution

The fourth proportional to 12,045.14, 18,063.22 and 4,145.46 is: 6,216.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.14 : 18,063.22 = 4,145.46 : x
  2. Step 2: Convert to fraction form
    12,045.14/18,063.22 = 4,145.46/x
  3. Step 3: Cross multiply
    12,045.14x = 18,063.22 × 4,145.46
  4. Step 4: Simplify right side
    12,045.14x = 74,880,355.98
  5. Step 5: Solve for x
    x = 74,880,355.98/12,045.14
  6. Step 6: Final answer
    x = 6,216.64

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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.