Home / 19,742.40-27,198.18-13,763.16

Finding the Fourth Proportional to 19,742.40, 27,198.18 and 13,763.16

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Solution

The fourth proportional to 19,742.40, 27,198.18 and 13,763.16 is: 18,960.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,742.40 : 27,198.18 = 13,763.16 : x
  2. Step 2: Convert to fraction form
    19,742.40/27,198.18 = 13,763.16/x
  3. Step 3: Cross multiply
    19,742.40x = 27,198.18 × 13,763.16
  4. Step 4: Simplify right side
    19,742.40x = 374,332,903.05
  5. Step 5: Solve for x
    x = 374,332,903.05/19,742.40
  6. Step 6: Final answer
    x = 18,960.86

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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.