Home / 11,905.64-17,858.59-4,112.63

Finding the Fourth Proportional to 11,905.64, 17,858.59 and 4,112.63

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Solution

The fourth proportional to 11,905.64, 17,858.59 and 4,112.63 is: 6,168.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.64 : 17,858.59 = 4,112.63 : x
  2. Step 2: Convert to fraction form
    11,905.64/17,858.59 = 4,112.63/x
  3. Step 3: Cross multiply
    11,905.64x = 17,858.59 × 4,112.63
  4. Step 4: Simplify right side
    11,905.64x = 73,445,772.99
  5. Step 5: Solve for x
    x = 73,445,772.99/11,905.64
  6. Step 6: Final answer
    x = 6,168.99

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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.