Home / 19,191.38-28,750.14-11,774.18

Finding the Fourth Proportional to 19,191.38, 28,750.14 and 11,774.18

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Solution

The fourth proportional to 19,191.38, 28,750.14 and 11,774.18 is: 17,638.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,191.38 : 28,750.14 = 11,774.18 : x
  2. Step 2: Convert to fraction form
    19,191.38/28,750.14 = 11,774.18/x
  3. Step 3: Cross multiply
    19,191.38x = 28,750.14 × 11,774.18
  4. Step 4: Simplify right side
    19,191.38x = 338,509,323.39
  5. Step 5: Solve for x
    x = 338,509,323.39/19,191.38
  6. Step 6: Final answer
    x = 17,638.61

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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.