Home / 12,836.49-19,246.43-8,440.62

Finding the Fourth Proportional to 12,836.49, 19,246.43 and 8,440.62

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Solution

The fourth proportional to 12,836.49, 19,246.43 and 8,440.62 is: 12,655.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,836.49 : 19,246.43 = 8,440.62 : x
  2. Step 2: Convert to fraction form
    12,836.49/19,246.43 = 8,440.62/x
  3. Step 3: Cross multiply
    12,836.49x = 19,246.43 × 8,440.62
  4. Step 4: Simplify right side
    12,836.49x = 162,451,759.78
  5. Step 5: Solve for x
    x = 162,451,759.78/12,836.49
  6. Step 6: Final answer
    x = 12,655.47

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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.