Home / 7,909.14-11,865.53-2,715

Finding the Fourth Proportional to 7,909.14, 11,865.53 and 2,715

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Solution

The fourth proportional to 7,909.14, 11,865.53 and 2,715 is: 4,073.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.14 : 11,865.53 = 2,715 : x
  2. Step 2: Convert to fraction form
    7,909.14/11,865.53 = 2,715/x
  3. Step 3: Cross multiply
    7,909.14x = 11,865.53 × 2,715
  4. Step 4: Simplify right side
    7,909.14x = 32,214,900.38
  5. Step 5: Solve for x
    x = 32,214,900.38/7,909.14
  6. Step 6: Final answer
    x = 4,073.12

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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.