Home / 12,379.14-17,083.26-7,345.89

Finding the Fourth Proportional to 12,379.14, 17,083.26 and 7,345.89

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Solution

The fourth proportional to 12,379.14, 17,083.26 and 7,345.89 is: 10,137.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.14 : 17,083.26 = 7,345.89 : x
  2. Step 2: Convert to fraction form
    12,379.14/17,083.26 = 7,345.89/x
  3. Step 3: Cross multiply
    12,379.14x = 17,083.26 × 7,345.89
  4. Step 4: Simplify right side
    12,379.14x = 125,491,748.80
  5. Step 5: Solve for x
    x = 125,491,748.80/12,379.14
  6. Step 6: Final answer
    x = 10,137.36

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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.