Home / 18,125.78-24,966.79-12,811.37

Finding the Fourth Proportional to 18,125.78, 24,966.79 and 12,811.37

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Solution

The fourth proportional to 18,125.78, 24,966.79 and 12,811.37 is: 17,646.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.78 : 24,966.79 = 12,811.37 : x
  2. Step 2: Convert to fraction form
    18,125.78/24,966.79 = 12,811.37/x
  3. Step 3: Cross multiply
    18,125.78x = 24,966.79 × 12,811.37
  4. Step 4: Simplify right side
    18,125.78x = 319,858,627.54
  5. Step 5: Solve for x
    x = 319,858,627.54/18,125.78
  6. Step 6: Final answer
    x = 17,646.62

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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.