Home / 12,231.94-18,306.21-8,484.99

Finding the Fourth Proportional to 12,231.94, 18,306.21 and 8,484.99

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Solution

The fourth proportional to 12,231.94, 18,306.21 and 8,484.99 is: 12,698.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.94 : 18,306.21 = 8,484.99 : x
  2. Step 2: Convert to fraction form
    12,231.94/18,306.21 = 8,484.99/x
  3. Step 3: Cross multiply
    12,231.94x = 18,306.21 × 8,484.99
  4. Step 4: Simplify right side
    12,231.94x = 155,328,008.79
  5. Step 5: Solve for x
    x = 155,328,008.79/12,231.94
  6. Step 6: Final answer
    x = 12,698.56

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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.