Home / 18,917.62-26,106.36-10,419.46

Finding the Fourth Proportional to 18,917.62, 26,106.36 and 10,419.46

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Solution

The fourth proportional to 18,917.62, 26,106.36 and 10,419.46 is: 14,378.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,917.62 : 26,106.36 = 10,419.46 : x
  2. Step 2: Convert to fraction form
    18,917.62/26,106.36 = 10,419.46/x
  3. Step 3: Cross multiply
    18,917.62x = 26,106.36 × 10,419.46
  4. Step 4: Simplify right side
    18,917.62x = 272,014,173.77
  5. Step 5: Solve for x
    x = 272,014,173.77/18,917.62
  6. Step 6: Final answer
    x = 14,378.88

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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.