Home / 11,119.20-15,344.42-7,141.83

Finding the Fourth Proportional to 11,119.20, 15,344.42 and 7,141.83

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Solution

The fourth proportional to 11,119.20, 15,344.42 and 7,141.83 is: 9,855.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.20 : 15,344.42 = 7,141.83 : x
  2. Step 2: Convert to fraction form
    11,119.20/15,344.42 = 7,141.83/x
  3. Step 3: Cross multiply
    11,119.20x = 15,344.42 × 7,141.83
  4. Step 4: Simplify right side
    11,119.20x = 109,587,203.38
  5. Step 5: Solve for x
    x = 109,587,203.38/11,119.20
  6. Step 6: Final answer
    x = 9,855.67

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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.