Home / 13,147.21-19,704.41-6,575.28

Finding the Fourth Proportional to 13,147.21, 19,704.41 and 6,575.28

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Solution

The fourth proportional to 13,147.21, 19,704.41 and 6,575.28 is: 9,854.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147.21 : 19,704.41 = 6,575.28 : x
  2. Step 2: Convert to fraction form
    13,147.21/19,704.41 = 6,575.28/x
  3. Step 3: Cross multiply
    13,147.21x = 19,704.41 × 6,575.28
  4. Step 4: Simplify right side
    13,147.21x = 129,561,967.86
  5. Step 5: Solve for x
    x = 129,561,967.86/13,147.21
  6. Step 6: Final answer
    x = 9,854.71

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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.