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Finding the Fourth Proportional to 18,262.60, 25,202.44 and 9,879.10

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Solution

The fourth proportional to 18,262.60, 25,202.44 and 9,879.10 is: 13,633.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262.60 : 25,202.44 = 9,879.10 : x
  2. Step 2: Convert to fraction form
    18,262.60/25,202.44 = 9,879.10/x
  3. Step 3: Cross multiply
    18,262.60x = 25,202.44 × 9,879.10
  4. Step 4: Simplify right side
    18,262.60x = 248,977,425.00
  5. Step 5: Solve for x
    x = 248,977,425.00/18,262.60
  6. Step 6: Final answer
    x = 13,633.19

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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.