Home / 17,391.12-26,086.62-12,220.08

Finding the Fourth Proportional to 17,391.12, 26,086.62 and 12,220.08

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Solution

The fourth proportional to 17,391.12, 26,086.62 and 12,220.08 is: 18,330.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,391.12 : 26,086.62 = 12,220.08 : x
  2. Step 2: Convert to fraction form
    17,391.12/26,086.62 = 12,220.08/x
  3. Step 3: Cross multiply
    17,391.12x = 26,086.62 × 12,220.08
  4. Step 4: Simplify right side
    17,391.12x = 318,780,583.33
  5. Step 5: Solve for x
    x = 318,780,583.33/17,391.12
  6. Step 6: Final answer
    x = 18,330.08

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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.