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Finding the Fourth Proportional to 18,555, 25,605.96 and 10,057.26

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Solution

The fourth proportional to 18,555, 25,605.96 and 10,057.26 is: 13,879.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555 : 25,605.96 = 10,057.26 : x
  2. Step 2: Convert to fraction form
    18,555/25,605.96 = 10,057.26/x
  3. Step 3: Cross multiply
    18,555x = 25,605.96 × 10,057.26
  4. Step 4: Simplify right side
    18,555x = 257,525,797.27
  5. Step 5: Solve for x
    x = 257,525,797.27/18,555
  6. Step 6: Final answer
    x = 13,879.05

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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.