Home / 19,119.97-28,647.60-11,708.95

Finding the Fourth Proportional to 19,119.97, 28,647.60 and 11,708.95

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Solution

The fourth proportional to 19,119.97, 28,647.60 and 11,708.95 is: 17,543.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.97 : 28,647.60 = 11,708.95 : x
  2. Step 2: Convert to fraction form
    19,119.97/28,647.60 = 11,708.95/x
  3. Step 3: Cross multiply
    19,119.97x = 28,647.60 × 11,708.95
  4. Step 4: Simplify right side
    19,119.97x = 335,433,316.02
  5. Step 5: Solve for x
    x = 335,433,316.02/19,119.97
  6. Step 6: Final answer
    x = 17,543.61

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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.