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Finding the Fourth Proportional to 17,986.20, 26,959.86 and 9,209.04

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Solution

The fourth proportional to 17,986.20, 26,959.86 and 9,209.04 is: 13,803.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,986.20 : 26,959.86 = 9,209.04 : x
  2. Step 2: Convert to fraction form
    17,986.20/26,959.86 = 9,209.04/x
  3. Step 3: Cross multiply
    17,986.20x = 26,959.86 × 9,209.04
  4. Step 4: Simplify right side
    17,986.20x = 248,274,429.13
  5. Step 5: Solve for x
    x = 248,274,429.13/17,986.20
  6. Step 6: Final answer
    x = 13,803.61

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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.