Home / 11,809.60-16,296.16-6,772.80

Finding the Fourth Proportional to 11,809.60, 16,296.16 and 6,772.80

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Solution

The fourth proportional to 11,809.60, 16,296.16 and 6,772.80 is: 9,345.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,809.60 : 16,296.16 = 6,772.80 : x
  2. Step 2: Convert to fraction form
    11,809.60/16,296.16 = 6,772.80/x
  3. Step 3: Cross multiply
    11,809.60x = 16,296.16 × 6,772.80
  4. Step 4: Simplify right side
    11,809.60x = 110,370,632.45
  5. Step 5: Solve for x
    x = 110,370,632.45/11,809.60
  6. Step 6: Final answer
    x = 9,345.84

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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.