Home / 13,366.66-18,450.85-7,777.66

Finding the Fourth Proportional to 13,366.66, 18,450.85 and 7,777.66

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Solution

The fourth proportional to 13,366.66, 18,450.85 and 7,777.66 is: 10,736.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.66 : 18,450.85 = 7,777.66 : x
  2. Step 2: Convert to fraction form
    13,366.66/18,450.85 = 7,777.66/x
  3. Step 3: Cross multiply
    13,366.66x = 18,450.85 × 7,777.66
  4. Step 4: Simplify right side
    13,366.66x = 143,504,438.01
  5. Step 5: Solve for x
    x = 143,504,438.01/13,366.66
  6. Step 6: Final answer
    x = 10,736.00

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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.