Home / 19,170.09-28,755.23-6,690.06

Finding the Fourth Proportional to 19,170.09, 28,755.23 and 6,690.06

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Solution

The fourth proportional to 19,170.09, 28,755.23 and 6,690.06 is: 10,035.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,170.09 : 28,755.23 = 6,690.06 : x
  2. Step 2: Convert to fraction form
    19,170.09/28,755.23 = 6,690.06/x
  3. Step 3: Cross multiply
    19,170.09x = 28,755.23 × 6,690.06
  4. Step 4: Simplify right side
    19,170.09x = 192,374,180.56
  5. Step 5: Solve for x
    x = 192,374,180.56/19,170.09
  6. Step 6: Final answer
    x = 10,035.12

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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.