Home / 19,102.12-28,621.56-7,408.96

Finding the Fourth Proportional to 19,102.12, 28,621.56 and 7,408.96

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Solution

The fourth proportional to 19,102.12, 28,621.56 and 7,408.96 is: 11,101.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,102.12 : 28,621.56 = 7,408.96 : x
  2. Step 2: Convert to fraction form
    19,102.12/28,621.56 = 7,408.96/x
  3. Step 3: Cross multiply
    19,102.12x = 28,621.56 × 7,408.96
  4. Step 4: Simplify right side
    19,102.12x = 212,055,993.18
  5. Step 5: Solve for x
    x = 212,055,993.18/19,102.12
  6. Step 6: Final answer
    x = 11,101.18

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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.