Home / 10,965.12-16,448.04-3,945.66

Finding the Fourth Proportional to 10,965.12, 16,448.04 and 3,945.66

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Solution

The fourth proportional to 10,965.12, 16,448.04 and 3,945.66 is: 5,918.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,965.12 : 16,448.04 = 3,945.66 : x
  2. Step 2: Convert to fraction form
    10,965.12/16,448.04 = 3,945.66/x
  3. Step 3: Cross multiply
    10,965.12x = 16,448.04 × 3,945.66
  4. Step 4: Simplify right side
    10,965.12x = 64,898,373.51
  5. Step 5: Solve for x
    x = 64,898,373.51/10,965.12
  6. Step 6: Final answer
    x = 5,918.62

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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.