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Finding the Fourth Proportional to 7,803.03, 11,709.18 and 2,876.13

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Solution

The fourth proportional to 7,803.03, 11,709.18 and 2,876.13 is: 4,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803.03 : 11,709.18 = 2,876.13 : x
  2. Step 2: Convert to fraction form
    7,803.03/11,709.18 = 2,876.13/x
  3. Step 3: Cross multiply
    7,803.03x = 11,709.18 × 2,876.13
  4. Step 4: Simplify right side
    7,803.03x = 33,677,123.87
  5. Step 5: Solve for x
    x = 33,677,123.87/7,803.03
  6. Step 6: Final answer
    x = 4,315.90

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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.