Home / 19,190.61-26,489.69-11,235.39

Finding the Fourth Proportional to 19,190.61, 26,489.69 and 11,235.39

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Solution

The fourth proportional to 19,190.61, 26,489.69 and 11,235.39 is: 15,508.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,190.61 : 26,489.69 = 11,235.39 : x
  2. Step 2: Convert to fraction form
    19,190.61/26,489.69 = 11,235.39/x
  3. Step 3: Cross multiply
    19,190.61x = 26,489.69 × 11,235.39
  4. Step 4: Simplify right side
    19,190.61x = 297,621,941.95
  5. Step 5: Solve for x
    x = 297,621,941.95/19,190.61
  6. Step 6: Final answer
    x = 15,508.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.