Home / 12,218.73-18,309.64-9,084.03

Finding the Fourth Proportional to 12,218.73, 18,309.64 and 9,084.03

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Solution

The fourth proportional to 12,218.73, 18,309.64 and 9,084.03 is: 13,612.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.73 : 18,309.64 = 9,084.03 : x
  2. Step 2: Convert to fraction form
    12,218.73/18,309.64 = 9,084.03/x
  3. Step 3: Cross multiply
    12,218.73x = 18,309.64 × 9,084.03
  4. Step 4: Simplify right side
    12,218.73x = 166,325,319.05
  5. Step 5: Solve for x
    x = 166,325,319.05/12,218.73
  6. Step 6: Final answer
    x = 13,612.32

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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.