Home / 11,877.60-17,816.16-3,112.64

Finding the Fourth Proportional to 11,877.60, 17,816.16 and 3,112.64

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Solution

The fourth proportional to 11,877.60, 17,816.16 and 3,112.64 is: 4,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,877.60 : 17,816.16 = 3,112.64 : x
  2. Step 2: Convert to fraction form
    11,877.60/17,816.16 = 3,112.64/x
  3. Step 3: Cross multiply
    11,877.60x = 17,816.16 × 3,112.64
  4. Step 4: Simplify right side
    11,877.60x = 55,455,292.26
  5. Step 5: Solve for x
    x = 55,455,292.26/11,877.60
  6. Step 6: Final answer
    x = 4,668.90

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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.