Home / 13,767.44-20,651.76-9,117.20

Finding the Fourth Proportional to 13,767.44, 20,651.76 and 9,117.20

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Solution

The fourth proportional to 13,767.44, 20,651.76 and 9,117.20 is: 13,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,767.44 : 20,651.76 = 9,117.20 : x
  2. Step 2: Convert to fraction form
    13,767.44/20,651.76 = 9,117.20/x
  3. Step 3: Cross multiply
    13,767.44x = 20,651.76 × 9,117.20
  4. Step 4: Simplify right side
    13,767.44x = 188,286,226.27
  5. Step 5: Solve for x
    x = 188,286,226.27/13,767.44
  6. Step 6: Final answer
    x = 13,676.20

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1.5x scale

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.