Home / 13,727.32-18,933.68-8,692.36

Finding the Fourth Proportional to 13,727.32, 18,933.68 and 8,692.36

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Solution

The fourth proportional to 13,727.32, 18,933.68 and 8,692.36 is: 11,989.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.32 : 18,933.68 = 8,692.36 : x
  2. Step 2: Convert to fraction form
    13,727.32/18,933.68 = 8,692.36/x
  3. Step 3: Cross multiply
    13,727.32x = 18,933.68 × 8,692.36
  4. Step 4: Simplify right side
    13,727.32x = 164,578,362.68
  5. Step 5: Solve for x
    x = 164,578,362.68/13,727.32
  6. Step 6: Final answer
    x = 11,989.11

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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.