Home / 11,778.40-17,668.46-4,382.86

Finding the Fourth Proportional to 11,778.40, 17,668.46 and 4,382.86

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Solution

The fourth proportional to 11,778.40, 17,668.46 and 4,382.86 is: 6,574.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.40 : 17,668.46 = 4,382.86 : x
  2. Step 2: Convert to fraction form
    11,778.40/17,668.46 = 4,382.86/x
  3. Step 3: Cross multiply
    11,778.40x = 17,668.46 × 4,382.86
  4. Step 4: Simplify right side
    11,778.40x = 77,438,303.73
  5. Step 5: Solve for x
    x = 77,438,303.73/11,778.40
  6. Step 6: Final answer
    x = 6,574.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.