Home / 13,077.44-18,042.72-8,112.32

Finding the Fourth Proportional to 13,077.44, 18,042.72 and 8,112.32

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Solution

The fourth proportional to 13,077.44, 18,042.72 and 8,112.32 is: 11,192.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.44 : 18,042.72 = 8,112.32 : x
  2. Step 2: Convert to fraction form
    13,077.44/18,042.72 = 8,112.32/x
  3. Step 3: Cross multiply
    13,077.44x = 18,042.72 × 8,112.32
  4. Step 4: Simplify right side
    13,077.44x = 146,368,318.31
  5. Step 5: Solve for x
    x = 146,368,318.31/13,077.44
  6. Step 6: Final answer
    x = 11,192.43

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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.