Home / 9,171.24-12,655.62-5,191.44

Finding the Fourth Proportional to 9,171.24, 12,655.62 and 5,191.44

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Solution

The fourth proportional to 9,171.24, 12,655.62 and 5,191.44 is: 7,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171.24 : 12,655.62 = 5,191.44 : x
  2. Step 2: Convert to fraction form
    9,171.24/12,655.62 = 5,191.44/x
  3. Step 3: Cross multiply
    9,171.24x = 12,655.62 × 5,191.44
  4. Step 4: Simplify right side
    9,171.24x = 65,700,891.89
  5. Step 5: Solve for x
    x = 65,700,891.89/9,171.24
  6. Step 6: Final answer
    x = 7,163.80

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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.