Home / 18,568.86-25,633.71-12,600.78

Finding the Fourth Proportional to 18,568.86, 25,633.71 and 12,600.78

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Solution

The fourth proportional to 18,568.86, 25,633.71 and 12,600.78 is: 17,394.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,568.86 : 25,633.71 = 12,600.78 : x
  2. Step 2: Convert to fraction form
    18,568.86/25,633.71 = 12,600.78/x
  3. Step 3: Cross multiply
    18,568.86x = 25,633.71 × 12,600.78
  4. Step 4: Simplify right side
    18,568.86x = 323,004,740.29
  5. Step 5: Solve for x
    x = 323,004,740.29/18,568.86
  6. Step 6: Final answer
    x = 17,394.97

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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.