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Finding the Fourth Proportional to 12,676.68, 19,014.99 and 7,736.79

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Solution

The fourth proportional to 12,676.68, 19,014.99 and 7,736.79 is: 11,605.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,676.68 : 19,014.99 = 7,736.79 : x
  2. Step 2: Convert to fraction form
    12,676.68/19,014.99 = 7,736.79/x
  3. Step 3: Cross multiply
    12,676.68x = 19,014.99 × 7,736.79
  4. Step 4: Simplify right side
    12,676.68x = 147,114,984.48
  5. Step 5: Solve for x
    x = 147,114,984.48/12,676.68
  6. Step 6: Final answer
    x = 11,605.17

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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.