Home / 11,784.80-16,262.24-6,479.84

Finding the Fourth Proportional to 11,784.80, 16,262.24 and 6,479.84

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Solution

The fourth proportional to 11,784.80, 16,262.24 and 6,479.84 is: 8,941.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,784.80 : 16,262.24 = 6,479.84 : x
  2. Step 2: Convert to fraction form
    11,784.80/16,262.24 = 6,479.84/x
  3. Step 3: Cross multiply
    11,784.80x = 16,262.24 × 6,479.84
  4. Step 4: Simplify right side
    11,784.80x = 105,376,713.24
  5. Step 5: Solve for x
    x = 105,376,713.24/11,784.80
  6. Step 6: Final answer
    x = 8,941.75

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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.