Home / 11,461.38-17,179.79-7,511.15

Finding the Fourth Proportional to 11,461.38, 17,179.79 and 7,511.15

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Solution

The fourth proportional to 11,461.38, 17,179.79 and 7,511.15 is: 11,258.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,461.38 : 17,179.79 = 7,511.15 : x
  2. Step 2: Convert to fraction form
    11,461.38/17,179.79 = 7,511.15/x
  3. Step 3: Cross multiply
    11,461.38x = 17,179.79 × 7,511.15
  4. Step 4: Simplify right side
    11,461.38x = 129,039,856.20
  5. Step 5: Solve for x
    x = 129,039,856.20/11,461.38
  6. Step 6: Final answer
    x = 11,258.67

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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.