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Finding the Fourth Proportional to 11,339.90, 17,006.76 and 7,173.64

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Solution

The fourth proportional to 11,339.90, 17,006.76 and 7,173.64 is: 10,758.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.90 : 17,006.76 = 7,173.64 : x
  2. Step 2: Convert to fraction form
    11,339.90/17,006.76 = 7,173.64/x
  3. Step 3: Cross multiply
    11,339.90x = 17,006.76 × 7,173.64
  4. Step 4: Simplify right side
    11,339.90x = 122,000,373.81
  5. Step 5: Solve for x
    x = 122,000,373.81/11,339.90
  6. Step 6: Final answer
    x = 10,758.51

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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.