Home / 11,313.81-16,964.55-3,917.66

Finding the Fourth Proportional to 11,313.81, 16,964.55 and 3,917.66

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Solution

The fourth proportional to 11,313.81, 16,964.55 and 3,917.66 is: 5,874.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.81 : 16,964.55 = 3,917.66 : x
  2. Step 2: Convert to fraction form
    11,313.81/16,964.55 = 3,917.66/x
  3. Step 3: Cross multiply
    11,313.81x = 16,964.55 × 3,917.66
  4. Step 4: Simplify right side
    11,313.81x = 66,461,254.13
  5. Step 5: Solve for x
    x = 66,461,254.13/11,313.81
  6. Step 6: Final answer
    x = 5,874.35

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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.