Home / 18,742.86-25,871.67-12,046.86

Finding the Fourth Proportional to 18,742.86, 25,871.67 and 12,046.86

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Solution

The fourth proportional to 18,742.86, 25,871.67 and 12,046.86 is: 16,628.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742.86 : 25,871.67 = 12,046.86 : x
  2. Step 2: Convert to fraction form
    18,742.86/25,871.67 = 12,046.86/x
  3. Step 3: Cross multiply
    18,742.86x = 25,871.67 × 12,046.86
  4. Step 4: Simplify right side
    18,742.86x = 311,672,386.46
  5. Step 5: Solve for x
    x = 311,672,386.46/18,742.86
  6. Step 6: Final answer
    x = 16,628.86

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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.