Home / 12,984.86-19,509.41-8,306.96

Finding the Fourth Proportional to 12,984.86, 19,509.41 and 8,306.96

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Solution

The fourth proportional to 12,984.86, 19,509.41 and 8,306.96 is: 12,480.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984.86 : 19,509.41 = 8,306.96 : x
  2. Step 2: Convert to fraction form
    12,984.86/19,509.41 = 8,306.96/x
  3. Step 3: Cross multiply
    12,984.86x = 19,509.41 × 8,306.96
  4. Step 4: Simplify right side
    12,984.86x = 162,063,764.99
  5. Step 5: Solve for x
    x = 162,063,764.99/12,984.86
  6. Step 6: Final answer
    x = 12,480.98

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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.