Home / 13,091.81-18,066.06-7,427.09

Finding the Fourth Proportional to 13,091.81, 18,066.06 and 7,427.09

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Solution

The fourth proportional to 13,091.81, 18,066.06 and 7,427.09 is: 10,249.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,091.81 : 18,066.06 = 7,427.09 : x
  2. Step 2: Convert to fraction form
    13,091.81/18,066.06 = 7,427.09/x
  3. Step 3: Cross multiply
    13,091.81x = 18,066.06 × 7,427.09
  4. Step 4: Simplify right side
    13,091.81x = 134,178,163.24
  5. Step 5: Solve for x
    x = 134,178,163.24/13,091.81
  6. Step 6: Final answer
    x = 10,249.02

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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.