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Finding the Fourth Proportional to 8,641.10, 12,960.12 and 3,094.49

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Solution

The fourth proportional to 8,641.10, 12,960.12 and 3,094.49 is: 4,641.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,641.10 : 12,960.12 = 3,094.49 : x
  2. Step 2: Convert to fraction form
    8,641.10/12,960.12 = 3,094.49/x
  3. Step 3: Cross multiply
    8,641.10x = 12,960.12 × 3,094.49
  4. Step 4: Simplify right side
    8,641.10x = 40,104,961.74
  5. Step 5: Solve for x
    x = 40,104,961.74/8,641.10
  6. Step 6: Final answer
    x = 4,641.19

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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.