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Finding the Fourth Proportional to 11,953.91, 16,496.15 and 6,648.39

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Solution

The fourth proportional to 11,953.91, 16,496.15 and 6,648.39 is: 9,174.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,953.91 : 16,496.15 = 6,648.39 : x
  2. Step 2: Convert to fraction form
    11,953.91/16,496.15 = 6,648.39/x
  3. Step 3: Cross multiply
    11,953.91x = 16,496.15 × 6,648.39
  4. Step 4: Simplify right side
    11,953.91x = 109,672,805.46
  5. Step 5: Solve for x
    x = 109,672,805.46/11,953.91
  6. Step 6: Final answer
    x = 9,174.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.