Home / 7,845.29-11,772.53-2,918.33

Finding the Fourth Proportional to 7,845.29, 11,772.53 and 2,918.33

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Solution

The fourth proportional to 7,845.29, 11,772.53 and 2,918.33 is: 4,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.29 : 11,772.53 = 2,918.33 : x
  2. Step 2: Convert to fraction form
    7,845.29/11,772.53 = 2,918.33/x
  3. Step 3: Cross multiply
    7,845.29x = 11,772.53 × 2,918.33
  4. Step 4: Simplify right side
    7,845.29x = 34,356,054.02
  5. Step 5: Solve for x
    x = 34,356,054.02/7,845.29
  6. Step 6: Final answer
    x = 4,379.20

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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.