Home / 18,357.09-25,333.79-10,400.86

Finding the Fourth Proportional to 18,357.09, 25,333.79 and 10,400.86

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Solution

The fourth proportional to 18,357.09, 25,333.79 and 10,400.86 is: 14,353.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,357.09 : 25,333.79 = 10,400.86 : x
  2. Step 2: Convert to fraction form
    18,357.09/25,333.79 = 10,400.86/x
  3. Step 3: Cross multiply
    18,357.09x = 25,333.79 × 10,400.86
  4. Step 4: Simplify right side
    18,357.09x = 263,493,182.72
  5. Step 5: Solve for x
    x = 263,493,182.72/18,357.09
  6. Step 6: Final answer
    x = 14,353.76

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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.