Home / 7,615.49-11,419.11-4,109.67

Finding the Fourth Proportional to 7,615.49, 11,419.11 and 4,109.67

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Solution

The fourth proportional to 7,615.49, 11,419.11 and 4,109.67 is: 6,162.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.49 : 11,419.11 = 4,109.67 : x
  2. Step 2: Convert to fraction form
    7,615.49/11,419.11 = 4,109.67/x
  3. Step 3: Cross multiply
    7,615.49x = 11,419.11 × 4,109.67
  4. Step 4: Simplify right side
    7,615.49x = 46,928,773.79
  5. Step 5: Solve for x
    x = 46,928,773.79/7,615.49
  6. Step 6: Final answer
    x = 6,162.28

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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.