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Finding the Fourth Proportional to 8,799.87, 12,143.37 and 4,820.23

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Solution

The fourth proportional to 8,799.87, 12,143.37 and 4,820.23 is: 6,651.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,799.87 : 12,143.37 = 4,820.23 : x
  2. Step 2: Convert to fraction form
    8,799.87/12,143.37 = 4,820.23/x
  3. Step 3: Cross multiply
    8,799.87x = 12,143.37 × 4,820.23
  4. Step 4: Simplify right side
    8,799.87x = 58,533,836.38
  5. Step 5: Solve for x
    x = 58,533,836.38/8,799.87
  6. Step 6: Final answer
    x = 6,651.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.