Home / 16,856.88-23,236.92-12,139.44

Finding the Fourth Proportional to 16,856.88, 23,236.92 and 12,139.44

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Solution

The fourth proportional to 16,856.88, 23,236.92 and 12,139.44 is: 16,734.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,856.88 : 23,236.92 = 12,139.44 : x
  2. Step 2: Convert to fraction form
    16,856.88/23,236.92 = 12,139.44/x
  3. Step 3: Cross multiply
    16,856.88x = 23,236.92 × 12,139.44
  4. Step 4: Simplify right side
    16,856.88x = 282,083,196.12
  5. Step 5: Solve for x
    x = 282,083,196.12/16,856.88
  6. Step 6: Final answer
    x = 16,734.01

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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.