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Finding the Fourth Proportional to 12,351, 18,526.50 and 4,960.56

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Solution

The fourth proportional to 12,351, 18,526.50 and 4,960.56 is: 7,440.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351 : 18,526.50 = 4,960.56 : x
  2. Step 2: Convert to fraction form
    12,351/18,526.50 = 4,960.56/x
  3. Step 3: Cross multiply
    12,351x = 18,526.50 × 4,960.56
  4. Step 4: Simplify right side
    12,351x = 91,901,814.84
  5. Step 5: Solve for x
    x = 91,901,814.84/12,351
  6. Step 6: Final answer
    x = 7,440.84

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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.