Home / 12,379.28-17,083.35-7,345.94

Finding the Fourth Proportional to 12,379.28, 17,083.35 and 7,345.94

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Solution

The fourth proportional to 12,379.28, 17,083.35 and 7,345.94 is: 10,137.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.28 : 17,083.35 = 7,345.94 : x
  2. Step 2: Convert to fraction form
    12,379.28/17,083.35 = 7,345.94/x
  3. Step 3: Cross multiply
    12,379.28x = 17,083.35 × 7,345.94
  4. Step 4: Simplify right side
    12,379.28x = 125,493,178.68
  5. Step 5: Solve for x
    x = 125,493,178.68/12,379.28
  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.