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Finding the Fourth Proportional to 7,392, 11,089.14 and 3,009.76

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Solution

The fourth proportional to 7,392, 11,089.14 and 3,009.76 is: 4,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,392 : 11,089.14 = 3,009.76 : x
  2. Step 2: Convert to fraction form
    7,392/11,089.14 = 3,009.76/x
  3. Step 3: Cross multiply
    7,392x = 11,089.14 × 3,009.76
  4. Step 4: Simplify right side
    7,392x = 33,375,650.01
  5. Step 5: Solve for x
    x = 33,375,650.01/7,392
  6. Step 6: Final answer
    x = 4,515.10

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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.