Home / 18,555.66-25,606.86-10,057.80

Finding the Fourth Proportional to 18,555.66, 25,606.86 and 10,057.80

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Solution

The fourth proportional to 18,555.66, 25,606.86 and 10,057.80 is: 13,879.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.66 : 25,606.86 = 10,057.80 : x
  2. Step 2: Convert to fraction form
    18,555.66/25,606.86 = 10,057.80/x
  3. Step 3: Cross multiply
    18,555.66x = 25,606.86 × 10,057.80
  4. Step 4: Simplify right side
    18,555.66x = 257,548,676.51
  5. Step 5: Solve for x
    x = 257,548,676.51/18,555.66
  6. Step 6: Final answer
    x = 13,879.79

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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.