Home / 19,143.51-28,726.44-8,049.36

Finding the Fourth Proportional to 19,143.51, 28,726.44 and 8,049.36

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Solution

The fourth proportional to 19,143.51, 28,726.44 and 8,049.36 is: 12,078.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.51 : 28,726.44 = 8,049.36 : x
  2. Step 2: Convert to fraction form
    19,143.51/28,726.44 = 8,049.36/x
  3. Step 3: Cross multiply
    19,143.51x = 28,726.44 × 8,049.36
  4. Step 4: Simplify right side
    19,143.51x = 231,229,457.08
  5. Step 5: Solve for x
    x = 231,229,457.08/19,143.51
  6. Step 6: Final answer
    x = 12,078.74

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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.