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Finding the Fourth Proportional to 8,503.47, 12,751.56 and 3,308.13

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Solution

The fourth proportional to 8,503.47, 12,751.56 and 3,308.13 is: 4,960.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503.47 : 12,751.56 = 3,308.13 : x
  2. Step 2: Convert to fraction form
    8,503.47/12,751.56 = 3,308.13/x
  3. Step 3: Cross multiply
    8,503.47x = 12,751.56 × 3,308.13
  4. Step 4: Simplify right side
    8,503.47x = 42,183,818.18
  5. Step 5: Solve for x
    x = 42,183,818.18/8,503.47
  6. Step 6: Final answer
    x = 4,960.78

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1.5x scale

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.