Home / 17,809.18-26,716.20-7,418.50

Finding the Fourth Proportional to 17,809.18, 26,716.20 and 7,418.50

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Solution

The fourth proportional to 17,809.18, 26,716.20 and 7,418.50 is: 11,128.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,809.18 : 26,716.20 = 7,418.50 : x
  2. Step 2: Convert to fraction form
    17,809.18/26,716.20 = 7,418.50/x
  3. Step 3: Cross multiply
    17,809.18x = 26,716.20 × 7,418.50
  4. Step 4: Simplify right side
    17,809.18x = 198,194,129.70
  5. Step 5: Solve for x
    x = 198,194,129.70/17,809.18
  6. Step 6: Final answer
    x = 11,128.76

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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.