Home / 17,890.10-26,812.20-9,992.60

Finding the Fourth Proportional to 17,890.10, 26,812.20 and 9,992.60

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Solution

The fourth proportional to 17,890.10, 26,812.20 and 9,992.60 is: 14,976.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,890.10 : 26,812.20 = 9,992.60 : x
  2. Step 2: Convert to fraction form
    17,890.10/26,812.20 = 9,992.60/x
  3. Step 3: Cross multiply
    17,890.10x = 26,812.20 × 9,992.60
  4. Step 4: Simplify right side
    17,890.10x = 267,923,589.72
  5. Step 5: Solve for x
    x = 267,923,589.72/17,890.10
  6. Step 6: Final answer
    x = 14,976.08

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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.