Home / 9,163.62-12,644.73-5,130.68

Finding the Fourth Proportional to 9,163.62, 12,644.73 and 5,130.68

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Solution

The fourth proportional to 9,163.62, 12,644.73 and 5,130.68 is: 7,079.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,163.62 : 12,644.73 = 5,130.68 : x
  2. Step 2: Convert to fraction form
    9,163.62/12,644.73 = 5,130.68/x
  3. Step 3: Cross multiply
    9,163.62x = 12,644.73 × 5,130.68
  4. Step 4: Simplify right side
    9,163.62x = 64,876,000.09
  5. Step 5: Solve for x
    x = 64,876,000.09/9,163.62
  6. Step 6: Final answer
    x = 7,079.73

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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.