Home / 12,146.96-18,125.12-11,403.92

Finding the Fourth Proportional to 12,146.96, 18,125.12 and 11,403.92

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Solution

The fourth proportional to 12,146.96, 18,125.12 and 11,403.92 is: 17,016.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146.96 : 18,125.12 = 11,403.92 : x
  2. Step 2: Convert to fraction form
    12,146.96/18,125.12 = 11,403.92/x
  3. Step 3: Cross multiply
    12,146.96x = 18,125.12 × 11,403.92
  4. Step 4: Simplify right side
    12,146.96x = 206,697,418.47
  5. Step 5: Solve for x
    x = 206,697,418.47/12,146.96
  6. Step 6: Final answer
    x = 17,016.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.