Home / 13,606.12-18,778.94-7,944.22

Finding the Fourth Proportional to 13,606.12, 18,778.94 and 7,944.22

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Solution

The fourth proportional to 13,606.12, 18,778.94 and 7,944.22 is: 10,964.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.12 : 18,778.94 = 7,944.22 : x
  2. Step 2: Convert to fraction form
    13,606.12/18,778.94 = 7,944.22/x
  3. Step 3: Cross multiply
    13,606.12x = 18,778.94 × 7,944.22
  4. Step 4: Simplify right side
    13,606.12x = 149,184,030.73
  5. Step 5: Solve for x
    x = 149,184,030.73/13,606.12
  6. Step 6: Final answer
    x = 10,964.48

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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.