Home / 18,783.89-25,910.65-11,708.94

Finding the Fourth Proportional to 18,783.89, 25,910.65 and 11,708.94

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Solution

The fourth proportional to 18,783.89, 25,910.65 and 11,708.94 is: 16,151.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.89 : 25,910.65 = 11,708.94 : x
  2. Step 2: Convert to fraction form
    18,783.89/25,910.65 = 11,708.94/x
  3. Step 3: Cross multiply
    18,783.89x = 25,910.65 × 11,708.94
  4. Step 4: Simplify right side
    18,783.89x = 303,386,246.21
  5. Step 5: Solve for x
    x = 303,386,246.21/18,783.89
  6. Step 6: Final answer
    x = 16,151.41

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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.