Home / 11,784.72-16,262.92-6,479.56

Finding the Fourth Proportional to 11,784.72, 16,262.92 and 6,479.56

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Solution

The fourth proportional to 11,784.72, 16,262.92 and 6,479.56 is: 8,941.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,784.72 : 16,262.92 = 6,479.56 : x
  2. Step 2: Convert to fraction form
    11,784.72/16,262.92 = 6,479.56/x
  3. Step 3: Cross multiply
    11,784.72x = 16,262.92 × 6,479.56
  4. Step 4: Simplify right side
    11,784.72x = 105,376,565.92
  5. Step 5: Solve for x
    x = 105,376,565.92/11,784.72
  6. Step 6: Final answer
    x = 8,941.80

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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.