Home / 11,455.63-17,181.92-5,208.91

Finding the Fourth Proportional to 11,455.63, 17,181.92 and 5,208.91

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Solution

The fourth proportional to 11,455.63, 17,181.92 and 5,208.91 is: 7,812.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.63 : 17,181.92 = 5,208.91 : x
  2. Step 2: Convert to fraction form
    11,455.63/17,181.92 = 5,208.91/x
  3. Step 3: Cross multiply
    11,455.63x = 17,181.92 × 5,208.91
  4. Step 4: Simplify right side
    11,455.63x = 89,499,044.97
  5. Step 5: Solve for x
    x = 89,499,044.97/11,455.63
  6. Step 6: Final answer
    x = 7,812.67

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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.