Home / 7,581.20-11,369.36-6,609.20

Finding the Fourth Proportional to 7,581.20, 11,369.36 and 6,609.20

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Solution

The fourth proportional to 7,581.20, 11,369.36 and 6,609.20 is: 9,911.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.20 : 11,369.36 = 6,609.20 : x
  2. Step 2: Convert to fraction form
    7,581.20/11,369.36 = 6,609.20/x
  3. Step 3: Cross multiply
    7,581.20x = 11,369.36 × 6,609.20
  4. Step 4: Simplify right side
    7,581.20x = 75,142,374.11
  5. Step 5: Solve for x
    x = 75,142,374.11/7,581.20
  6. Step 6: Final answer
    x = 9,911.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.