Home / 13,270.80-18,327.60-10,777.56

Finding the Fourth Proportional to 13,270.80, 18,327.60 and 10,777.56

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Solution

The fourth proportional to 13,270.80, 18,327.60 and 10,777.56 is: 14,884.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.80 : 18,327.60 = 10,777.56 : x
  2. Step 2: Convert to fraction form
    13,270.80/18,327.60 = 10,777.56/x
  3. Step 3: Cross multiply
    13,270.80x = 18,327.60 × 10,777.56
  4. Step 4: Simplify right side
    13,270.80x = 197,526,808.66
  5. Step 5: Solve for x
    x = 197,526,808.66/13,270.80
  6. Step 6: Final answer
    x = 14,884.32

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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.