Home / 12,403.21-17,116.73-7,099.73

Finding the Fourth Proportional to 12,403.21, 17,116.73 and 7,099.73

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Solution

The fourth proportional to 12,403.21, 17,116.73 and 7,099.73 is: 9,797.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.21 : 17,116.73 = 7,099.73 : x
  2. Step 2: Convert to fraction form
    12,403.21/17,116.73 = 7,099.73/x
  3. Step 3: Cross multiply
    12,403.21x = 17,116.73 × 7,099.73
  4. Step 4: Simplify right side
    12,403.21x = 121,524,222.02
  5. Step 5: Solve for x
    x = 121,524,222.02/12,403.21
  6. Step 6: Final answer
    x = 9,797.81

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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.