Home / 13,982.85-20,919.60-9,062.10

Finding the Fourth Proportional to 13,982.85, 20,919.60 and 9,062.10

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Solution

The fourth proportional to 13,982.85, 20,919.60 and 9,062.10 is: 13,557.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.85 : 20,919.60 = 9,062.10 : x
  2. Step 2: Convert to fraction form
    13,982.85/20,919.60 = 9,062.10/x
  3. Step 3: Cross multiply
    13,982.85x = 20,919.60 × 9,062.10
  4. Step 4: Simplify right side
    13,982.85x = 189,575,507.16
  5. Step 5: Solve for x
    x = 189,575,507.16/13,982.85
  6. Step 6: Final answer
    x = 13,557.72

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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.