Home / 17,419.63-26,129.76-4,272.10

Finding the Fourth Proportional to 17,419.63, 26,129.76 and 4,272.10

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Solution

The fourth proportional to 17,419.63, 26,129.76 and 4,272.10 is: 6,408.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,419.63 : 26,129.76 = 4,272.10 : x
  2. Step 2: Convert to fraction form
    17,419.63/26,129.76 = 4,272.10/x
  3. Step 3: Cross multiply
    17,419.63x = 26,129.76 × 4,272.10
  4. Step 4: Simplify right side
    17,419.63x = 111,628,947.70
  5. Step 5: Solve for x
    x = 111,628,947.70/17,419.63
  6. Step 6: Final answer
    x = 6,408.23

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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.