Home / 13,919.82-20,827.40-9,767.92

Finding the Fourth Proportional to 13,919.82, 20,827.40 and 9,767.92

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Solution

The fourth proportional to 13,919.82, 20,827.40 and 9,767.92 is: 14,615.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.82 : 20,827.40 = 9,767.92 : x
  2. Step 2: Convert to fraction form
    13,919.82/20,827.40 = 9,767.92/x
  3. Step 3: Cross multiply
    13,919.82x = 20,827.40 × 9,767.92
  4. Step 4: Simplify right side
    13,919.82x = 203,440,377.01
  5. Step 5: Solve for x
    x = 203,440,377.01/13,919.82
  6. Step 6: Final answer
    x = 14,615.16

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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.