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Finding the Fourth Proportional to 16,918.80, 25,388.31 and 9,027.18

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Solution

The fourth proportional to 16,918.80, 25,388.31 and 9,027.18 is: 13,546.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,918.80 : 25,388.31 = 9,027.18 : x
  2. Step 2: Convert to fraction form
    16,918.80/25,388.31 = 9,027.18/x
  3. Step 3: Cross multiply
    16,918.80x = 25,388.31 × 9,027.18
  4. Step 4: Simplify right side
    16,918.80x = 229,184,844.27
  5. Step 5: Solve for x
    x = 229,184,844.27/16,918.80
  6. Step 6: Final answer
    x = 13,546.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.