Home / 18,256.70-25,187.52-11,977.58

Finding the Fourth Proportional to 18,256.70, 25,187.52 and 11,977.58

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Solution

The fourth proportional to 18,256.70, 25,187.52 and 11,977.58 is: 16,524.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,256.70 : 25,187.52 = 11,977.58 : x
  2. Step 2: Convert to fraction form
    18,256.70/25,187.52 = 11,977.58/x
  3. Step 3: Cross multiply
    18,256.70x = 25,187.52 × 11,977.58
  4. Step 4: Simplify right side
    18,256.70x = 301,685,535.80
  5. Step 5: Solve for x
    x = 301,685,535.80/18,256.70
  6. Step 6: Final answer
    x = 16,524.65

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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.