Home / 11,305.76-16,962.64-5,065.28

Finding the Fourth Proportional to 11,305.76, 16,962.64 and 5,065.28

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Solution

The fourth proportional to 11,305.76, 16,962.64 and 5,065.28 is: 7,599.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,305.76 : 16,962.64 = 5,065.28 : x
  2. Step 2: Convert to fraction form
    11,305.76/16,962.64 = 5,065.28/x
  3. Step 3: Cross multiply
    11,305.76x = 16,962.64 × 5,065.28
  4. Step 4: Simplify right side
    11,305.76x = 85,920,521.14
  5. Step 5: Solve for x
    x = 85,920,521.14/11,305.76
  6. Step 6: Final answer
    x = 7,599.71

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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.