Home / 12,670.20-18,976.76-9,836.48

Finding the Fourth Proportional to 12,670.20, 18,976.76 and 9,836.48

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Solution

The fourth proportional to 12,670.20, 18,976.76 and 9,836.48 is: 14,732.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,670.20 : 18,976.76 = 9,836.48 : x
  2. Step 2: Convert to fraction form
    12,670.20/18,976.76 = 9,836.48/x
  3. Step 3: Cross multiply
    12,670.20x = 18,976.76 × 9,836.48
  4. Step 4: Simplify right side
    12,670.20x = 186,664,520.20
  5. Step 5: Solve for x
    x = 186,664,520.20/12,670.20
  6. Step 6: Final answer
    x = 14,732.56

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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.