Home / 13,942.79-19,230.99-8,836.55

Finding the Fourth Proportional to 13,942.79, 19,230.99 and 8,836.55

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Solution

The fourth proportional to 13,942.79, 19,230.99 and 8,836.55 is: 12,188.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.79 : 19,230.99 = 8,836.55 : x
  2. Step 2: Convert to fraction form
    13,942.79/19,230.99 = 8,836.55/x
  3. Step 3: Cross multiply
    13,942.79x = 19,230.99 × 8,836.55
  4. Step 4: Simplify right side
    13,942.79x = 169,935,604.68
  5. Step 5: Solve for x
    x = 169,935,604.68/13,942.79
  6. Step 6: Final answer
    x = 12,188.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.