Home / 11,784.98-16,262.90-6,479.78

Finding the Fourth Proportional to 11,784.98, 16,262.90 and 6,479.78

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Solution

The fourth proportional to 11,784.98, 16,262.90 and 6,479.78 is: 8,941.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,784.98 : 16,262.90 = 6,479.78 : x
  2. Step 2: Convert to fraction form
    11,784.98/16,262.90 = 6,479.78/x
  3. Step 3: Cross multiply
    11,784.98x = 16,262.90 × 6,479.78
  4. Step 4: Simplify right side
    11,784.98x = 105,380,014.16
  5. Step 5: Solve for x
    x = 105,380,014.16/11,784.98
  6. Step 6: Final answer
    x = 8,941.89

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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.