Home / 19,115.77-26,370.61-13,453.66

Finding the Fourth Proportional to 19,115.77, 26,370.61 and 13,453.66

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Solution

The fourth proportional to 19,115.77, 26,370.61 and 13,453.66 is: 18,559.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.77 : 26,370.61 = 13,453.66 : x
  2. Step 2: Convert to fraction form
    19,115.77/26,370.61 = 13,453.66/x
  3. Step 3: Cross multiply
    19,115.77x = 26,370.61 × 13,453.66
  4. Step 4: Simplify right side
    19,115.77x = 354,781,220.26
  5. Step 5: Solve for x
    x = 354,781,220.26/19,115.77
  6. Step 6: Final answer
    x = 18,559.61

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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.