Home / 19,309.86-26,638.20-12,592.44

Finding the Fourth Proportional to 19,309.86, 26,638.20 and 12,592.44

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Solution

The fourth proportional to 19,309.86, 26,638.20 and 12,592.44 is: 17,371.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,309.86 : 26,638.20 = 12,592.44 : x
  2. Step 2: Convert to fraction form
    19,309.86/26,638.20 = 12,592.44/x
  3. Step 3: Cross multiply
    19,309.86x = 26,638.20 × 12,592.44
  4. Step 4: Simplify right side
    19,309.86x = 335,439,935.21
  5. Step 5: Solve for x
    x = 335,439,935.21/19,309.86
  6. Step 6: Final answer
    x = 17,371.43

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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.