Home / 12,431.75-17,154.41-7,326.94

Finding the Fourth Proportional to 12,431.75, 17,154.41 and 7,326.94

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Solution

The fourth proportional to 12,431.75, 17,154.41 and 7,326.94 is: 10,110.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431.75 : 17,154.41 = 7,326.94 : x
  2. Step 2: Convert to fraction form
    12,431.75/17,154.41 = 7,326.94/x
  3. Step 3: Cross multiply
    12,431.75x = 17,154.41 × 7,326.94
  4. Step 4: Simplify right side
    12,431.75x = 125,689,305.89
  5. Step 5: Solve for x
    x = 125,689,305.89/12,431.75
  6. Step 6: Final answer
    x = 10,110.34

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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.