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Finding the Fourth Proportional to 8,617.39, 12,928.23 and 2,461.39

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Solution

The fourth proportional to 8,617.39, 12,928.23 and 2,461.39 is: 3,692.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.39 : 12,928.23 = 2,461.39 : x
  2. Step 2: Convert to fraction form
    8,617.39/12,928.23 = 2,461.39/x
  3. Step 3: Cross multiply
    8,617.39x = 12,928.23 × 2,461.39
  4. Step 4: Simplify right side
    8,617.39x = 31,821,416.04
  5. Step 5: Solve for x
    x = 31,821,416.04/8,617.39
  6. Step 6: Final answer
    x = 3,692.70

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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.