Home / 9,412.37-12,989.17-5,163.44

Finding the Fourth Proportional to 9,412.37, 12,989.17 and 5,163.44

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Solution

The fourth proportional to 9,412.37, 12,989.17 and 5,163.44 is: 7,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,412.37 : 12,989.17 = 5,163.44 : x
  2. Step 2: Convert to fraction form
    9,412.37/12,989.17 = 5,163.44/x
  3. Step 3: Cross multiply
    9,412.37x = 12,989.17 × 5,163.44
  4. Step 4: Simplify right side
    9,412.37x = 67,068,715.64
  5. Step 5: Solve for x
    x = 67,068,715.64/9,412.37
  6. Step 6: Final answer
    x = 7,125.60

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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.