Home / 8,819.28-13,230-3,626.64

Finding the Fourth Proportional to 8,819.28, 13,230 and 3,626.64

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Solution

The fourth proportional to 8,819.28, 13,230 and 3,626.64 is: 5,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.28 : 13,230 = 3,626.64 : x
  2. Step 2: Convert to fraction form
    8,819.28/13,230 = 3,626.64/x
  3. Step 3: Cross multiply
    8,819.28x = 13,230 × 3,626.64
  4. Step 4: Simplify right side
    8,819.28x = 47,980,447.20
  5. Step 5: Solve for x
    x = 47,980,447.20/8,819.28
  6. Step 6: Final answer
    x = 5,440.40

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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.