Home / 13,727.66-18,946.20-8,692.35

Finding the Fourth Proportional to 13,727.66, 18,946.20 and 8,692.35

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Solution

The fourth proportional to 13,727.66, 18,946.20 and 8,692.35 is: 11,996.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.66 : 18,946.20 = 8,692.35 : x
  2. Step 2: Convert to fraction form
    13,727.66/18,946.20 = 8,692.35/x
  3. Step 3: Cross multiply
    13,727.66x = 18,946.20 × 8,692.35
  4. Step 4: Simplify right side
    13,727.66x = 164,687,001.57
  5. Step 5: Solve for x
    x = 164,687,001.57/13,727.66
  6. Step 6: Final answer
    x = 11,996.73

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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.