Home / 7,634.86-11,437.43-5,629.90

Finding the Fourth Proportional to 7,634.86, 11,437.43 and 5,629.90

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Solution

The fourth proportional to 7,634.86, 11,437.43 and 5,629.90 is: 8,433.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,634.86 : 11,437.43 = 5,629.90 : x
  2. Step 2: Convert to fraction form
    7,634.86/11,437.43 = 5,629.90/x
  3. Step 3: Cross multiply
    7,634.86x = 11,437.43 × 5,629.90
  4. Step 4: Simplify right side
    7,634.86x = 64,391,587.16
  5. Step 5: Solve for x
    x = 64,391,587.16/7,634.86
  6. Step 6: Final answer
    x = 8,433.89

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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.