Home / 11,340.72-17,007.28-4,765.68

Finding the Fourth Proportional to 11,340.72, 17,007.28 and 4,765.68

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Solution

The fourth proportional to 11,340.72, 17,007.28 and 4,765.68 is: 7,146.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.72 : 17,007.28 = 4,765.68 : x
  2. Step 2: Convert to fraction form
    11,340.72/17,007.28 = 4,765.68/x
  3. Step 3: Cross multiply
    11,340.72x = 17,007.28 × 4,765.68
  4. Step 4: Simplify right side
    11,340.72x = 81,051,254.15
  5. Step 5: Solve for x
    x = 81,051,254.15/11,340.72
  6. Step 6: Final answer
    x = 7,146.92

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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.