Home / 12,112.64-18,168.60-3,348.08

Finding the Fourth Proportional to 12,112.64, 18,168.60 and 3,348.08

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Solution

The fourth proportional to 12,112.64, 18,168.60 and 3,348.08 is: 5,022.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.64 : 18,168.60 = 3,348.08 : x
  2. Step 2: Convert to fraction form
    12,112.64/18,168.60 = 3,348.08/x
  3. Step 3: Cross multiply
    12,112.64x = 18,168.60 × 3,348.08
  4. Step 4: Simplify right side
    12,112.64x = 60,829,926.29
  5. Step 5: Solve for x
    x = 60,829,926.29/12,112.64
  6. Step 6: Final answer
    x = 5,022.02

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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.