Home / 19,112-26,378.88-11,664.32

Finding the Fourth Proportional to 19,112, 26,378.88 and 11,664.32

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Solution

The fourth proportional to 19,112, 26,378.88 and 11,664.32 is: 16,099.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112 : 26,378.88 = 11,664.32 : x
  2. Step 2: Convert to fraction form
    19,112/26,378.88 = 11,664.32/x
  3. Step 3: Cross multiply
    19,112x = 26,378.88 × 11,664.32
  4. Step 4: Simplify right side
    19,112x = 307,691,697.56
  5. Step 5: Solve for x
    x = 307,691,697.56/19,112
  6. Step 6: Final answer
    x = 16,099.40

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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.