Home / 13,544.21-18,691.01-8,828.49

Finding the Fourth Proportional to 13,544.21, 18,691.01 and 8,828.49

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Solution

The fourth proportional to 13,544.21, 18,691.01 and 8,828.49 is: 12,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,544.21 : 18,691.01 = 8,828.49 : x
  2. Step 2: Convert to fraction form
    13,544.21/18,691.01 = 8,828.49/x
  3. Step 3: Cross multiply
    13,544.21x = 18,691.01 × 8,828.49
  4. Step 4: Simplify right side
    13,544.21x = 165,013,452.64
  5. Step 5: Solve for x
    x = 165,013,452.64/13,544.21
  6. Step 6: Final answer
    x = 12,183.32

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1.5x scale

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.