Home / 13,086.24-18,052.66-7,777.30

Finding the Fourth Proportional to 13,086.24, 18,052.66 and 7,777.30

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Solution

The fourth proportional to 13,086.24, 18,052.66 and 7,777.30 is: 10,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,086.24 : 18,052.66 = 7,777.30 : x
  2. Step 2: Convert to fraction form
    13,086.24/18,052.66 = 7,777.30/x
  3. Step 3: Cross multiply
    13,086.24x = 18,052.66 × 7,777.30
  4. Step 4: Simplify right side
    13,086.24x = 140,400,952.62
  5. Step 5: Solve for x
    x = 140,400,952.62/13,086.24
  6. Step 6: Final answer
    x = 10,728.90

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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.