Home / 18,768.96-25,888.32-11,692.80

Finding the Fourth Proportional to 18,768.96, 25,888.32 and 11,692.80

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Solution

The fourth proportional to 18,768.96, 25,888.32 and 11,692.80 is: 16,128.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.96 : 25,888.32 = 11,692.80 : x
  2. Step 2: Convert to fraction form
    18,768.96/25,888.32 = 11,692.80/x
  3. Step 3: Cross multiply
    18,768.96x = 25,888.32 × 11,692.80
  4. Step 4: Simplify right side
    18,768.96x = 302,706,948.10
  5. Step 5: Solve for x
    x = 302,706,948.10/18,768.96
  6. Step 6: Final answer
    x = 16,128.06

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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.