Home / 13,659.95-18,852.55-7,692.80

Finding the Fourth Proportional to 13,659.95, 18,852.55 and 7,692.80

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Solution

The fourth proportional to 13,659.95, 18,852.55 and 7,692.80 is: 10,617.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.95 : 18,852.55 = 7,692.80 : x
  2. Step 2: Convert to fraction form
    13,659.95/18,852.55 = 7,692.80/x
  3. Step 3: Cross multiply
    13,659.95x = 18,852.55 × 7,692.80
  4. Step 4: Simplify right side
    13,659.95x = 145,028,783.15
  5. Step 5: Solve for x
    x = 145,028,783.15/13,659.95
  6. Step 6: Final answer
    x = 10,617.08

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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.