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Finding the Fourth Proportional to 11,889.72, 17,822.76 and 6,627.13

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Solution

The fourth proportional to 11,889.72, 17,822.76 and 6,627.13 is: 9,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,889.72 : 17,822.76 = 6,627.13 : x
  2. Step 2: Convert to fraction form
    11,889.72/17,822.76 = 6,627.13/x
  3. Step 3: Cross multiply
    11,889.72x = 17,822.76 × 6,627.13
  4. Step 4: Simplify right side
    11,889.72x = 118,113,658.37
  5. Step 5: Solve for x
    x = 118,113,658.37/11,889.72
  6. Step 6: Final answer
    x = 9,934.10

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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.