Home / 12,845-19,271.39-9,104.02

Finding the Fourth Proportional to 12,845, 19,271.39 and 9,104.02

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Solution

The fourth proportional to 12,845, 19,271.39 and 9,104.02 is: 13,658.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845 : 19,271.39 = 9,104.02 : x
  2. Step 2: Convert to fraction form
    12,845/19,271.39 = 9,104.02/x
  3. Step 3: Cross multiply
    12,845x = 19,271.39 × 9,104.02
  4. Step 4: Simplify right side
    12,845x = 175,446,978.11
  5. Step 5: Solve for x
    x = 175,446,978.11/12,845
  6. Step 6: Final answer
    x = 13,658.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.