Home / 10,918.08-16,372.32-3,125.12

Finding the Fourth Proportional to 10,918.08, 16,372.32 and 3,125.12

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Solution

The fourth proportional to 10,918.08, 16,372.32 and 3,125.12 is: 4,686.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.08 : 16,372.32 = 3,125.12 : x
  2. Step 2: Convert to fraction form
    10,918.08/16,372.32 = 3,125.12/x
  3. Step 3: Cross multiply
    10,918.08x = 16,372.32 × 3,125.12
  4. Step 4: Simplify right side
    10,918.08x = 51,165,464.68
  5. Step 5: Solve for x
    x = 51,165,464.68/10,918.08
  6. Step 6: Final answer
    x = 4,686.31

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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.