Home / 13,659.96-18,852.56-7,692.78

Finding the Fourth Proportional to 13,659.96, 18,852.56 and 7,692.78

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Solution

The fourth proportional to 13,659.96, 18,852.56 and 7,692.78 is: 10,617.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.96 : 18,852.56 = 7,692.78 : x
  2. Step 2: Convert to fraction form
    13,659.96/18,852.56 = 7,692.78/x
  3. Step 3: Cross multiply
    13,659.96x = 18,852.56 × 7,692.78
  4. Step 4: Simplify right side
    13,659.96x = 145,028,558.05
  5. Step 5: Solve for x
    x = 145,028,558.05/13,659.96
  6. Step 6: Final answer
    x = 10,617.06

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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.