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Finding the Fourth Proportional to 11,354.63, 17,031.95 and 3,146.63

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Solution

The fourth proportional to 11,354.63, 17,031.95 and 3,146.63 is: 4,719.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,354.63 : 17,031.95 = 3,146.63 : x
  2. Step 2: Convert to fraction form
    11,354.63/17,031.95 = 3,146.63/x
  3. Step 3: Cross multiply
    11,354.63x = 17,031.95 × 3,146.63
  4. Step 4: Simplify right side
    11,354.63x = 53,593,143.94
  5. Step 5: Solve for x
    x = 53,593,143.94/11,354.63
  6. Step 6: Final answer
    x = 4,719.94

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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.