Home / 7,487.87-11,233.97-2,421.95

Finding the Fourth Proportional to 7,487.87, 11,233.97 and 2,421.95

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Solution

The fourth proportional to 7,487.87, 11,233.97 and 2,421.95 is: 3,633.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.87 : 11,233.97 = 2,421.95 : x
  2. Step 2: Convert to fraction form
    7,487.87/11,233.97 = 2,421.95/x
  3. Step 3: Cross multiply
    7,487.87x = 11,233.97 × 2,421.95
  4. Step 4: Simplify right side
    7,487.87x = 27,208,110.82
  5. Step 5: Solve for x
    x = 27,208,110.82/7,487.87
  6. Step 6: Final answer
    x = 3,633.62

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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.