Home / 18,827.12-25,960.43-12,103.46

Finding the Fourth Proportional to 18,827.12, 25,960.43 and 12,103.46

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Solution

The fourth proportional to 18,827.12, 25,960.43 and 12,103.46 is: 16,689.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.12 : 25,960.43 = 12,103.46 : x
  2. Step 2: Convert to fraction form
    18,827.12/25,960.43 = 12,103.46/x
  3. Step 3: Cross multiply
    18,827.12x = 25,960.43 × 12,103.46
  4. Step 4: Simplify right side
    18,827.12x = 314,210,965.57
  5. Step 5: Solve for x
    x = 314,210,965.57/18,827.12
  6. Step 6: Final answer
    x = 16,689.27

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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.