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Finding the Fourth Proportional to 8,996.40, 12,410.04 and 5,269.68

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Solution

The fourth proportional to 8,996.40, 12,410.04 and 5,269.68 is: 7,269.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,996.40 : 12,410.04 = 5,269.68 : x
  2. Step 2: Convert to fraction form
    8,996.40/12,410.04 = 5,269.68/x
  3. Step 3: Cross multiply
    8,996.40x = 12,410.04 × 5,269.68
  4. Step 4: Simplify right side
    8,996.40x = 65,396,939.59
  5. Step 5: Solve for x
    x = 65,396,939.59/8,996.40
  6. Step 6: Final answer
    x = 7,269.23

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1.5x scale

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.