Home / 11,972.54-17,968.17-8,300.63

Finding the Fourth Proportional to 11,972.54, 17,968.17 and 8,300.63

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Solution

The fourth proportional to 11,972.54, 17,968.17 and 8,300.63 is: 12,457.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.54 : 17,968.17 = 8,300.63 : x
  2. Step 2: Convert to fraction form
    11,972.54/17,968.17 = 8,300.63/x
  3. Step 3: Cross multiply
    11,972.54x = 17,968.17 × 8,300.63
  4. Step 4: Simplify right side
    11,972.54x = 149,147,130.95
  5. Step 5: Solve for x
    x = 149,147,130.95/11,972.54
  6. Step 6: Final answer
    x = 12,457.43

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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.