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Finding the Fourth Proportional to 12,273, 18,409.10 and 3,953.49

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Solution

The fourth proportional to 12,273, 18,409.10 and 3,953.49 is: 5,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,273 : 18,409.10 = 3,953.49 : x
  2. Step 2: Convert to fraction form
    12,273/18,409.10 = 3,953.49/x
  3. Step 3: Cross multiply
    12,273x = 18,409.10 × 3,953.49
  4. Step 4: Simplify right side
    12,273x = 72,780,172.99
  5. Step 5: Solve for x
    x = 72,780,172.99/12,273
  6. Step 6: Final answer
    x = 5,930.10

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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.