Home / 9,355.23-12,910.21-5,163.48

Finding the Fourth Proportional to 9,355.23, 12,910.21 and 5,163.48

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Solution

The fourth proportional to 9,355.23, 12,910.21 and 5,163.48 is: 7,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,355.23 : 12,910.21 = 5,163.48 : x
  2. Step 2: Convert to fraction form
    9,355.23/12,910.21 = 5,163.48/x
  3. Step 3: Cross multiply
    9,355.23x = 12,910.21 × 5,163.48
  4. Step 4: Simplify right side
    9,355.23x = 66,661,598.22
  5. Step 5: Solve for x
    x = 66,661,598.22/9,355.23
  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.