Home / 17,986.38-26,961.12-6,890.22

Finding the Fourth Proportional to 17,986.38, 26,961.12 and 6,890.22

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Solution

The fourth proportional to 17,986.38, 26,961.12 and 6,890.22 is: 10,328.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,986.38 : 26,961.12 = 6,890.22 : x
  2. Step 2: Convert to fraction form
    17,986.38/26,961.12 = 6,890.22/x
  3. Step 3: Cross multiply
    17,986.38x = 26,961.12 × 6,890.22
  4. Step 4: Simplify right side
    17,986.38x = 185,768,048.25
  5. Step 5: Solve for x
    x = 185,768,048.25/17,986.38
  6. Step 6: Final answer
    x = 10,328.26

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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.