Home / 11,785.16-16,262.88-6,479.12

Finding the Fourth Proportional to 11,785.16, 16,262.88 and 6,479.12

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Solution

The fourth proportional to 11,785.16, 16,262.88 and 6,479.12 is: 8,940.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.16 : 16,262.88 = 6,479.12 : x
  2. Step 2: Convert to fraction form
    11,785.16/16,262.88 = 6,479.12/x
  3. Step 3: Cross multiply
    11,785.16x = 16,262.88 × 6,479.12
  4. Step 4: Simplify right side
    11,785.16x = 105,369,151.07
  5. Step 5: Solve for x
    x = 105,369,151.07/11,785.16
  6. Step 6: Final answer
    x = 8,940.83

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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.