Home / 11,945.32-17,918.04-4,152.28

Finding the Fourth Proportional to 11,945.32, 17,918.04 and 4,152.28

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Solution

The fourth proportional to 11,945.32, 17,918.04 and 4,152.28 is: 6,228.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.32 : 17,918.04 = 4,152.28 : x
  2. Step 2: Convert to fraction form
    11,945.32/17,918.04 = 4,152.28/x
  3. Step 3: Cross multiply
    11,945.32x = 17,918.04 × 4,152.28
  4. Step 4: Simplify right side
    11,945.32x = 74,400,719.13
  5. Step 5: Solve for x
    x = 74,400,719.13/11,945.32
  6. Step 6: Final answer
    x = 6,228.44

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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.