Home / 11,778.48-16,238.25-8,894.61

Finding the Fourth Proportional to 11,778.48, 16,238.25 and 8,894.61

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Solution

The fourth proportional to 11,778.48, 16,238.25 and 8,894.61 is: 12,262.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.48 : 16,238.25 = 8,894.61 : x
  2. Step 2: Convert to fraction form
    11,778.48/16,238.25 = 8,894.61/x
  3. Step 3: Cross multiply
    11,778.48x = 16,238.25 × 8,894.61
  4. Step 4: Simplify right side
    11,778.48x = 144,432,900.83
  5. Step 5: Solve for x
    x = 144,432,900.83/11,778.48
  6. Step 6: Final answer
    x = 12,262.44

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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.