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Finding the Fourth Proportional to 8,454.66, 12,679.54 and 3,259.32

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Solution

The fourth proportional to 8,454.66, 12,679.54 and 3,259.32 is: 4,888.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.66 : 12,679.54 = 3,259.32 : x
  2. Step 2: Convert to fraction form
    8,454.66/12,679.54 = 3,259.32/x
  3. Step 3: Cross multiply
    8,454.66x = 12,679.54 × 3,259.32
  4. Step 4: Simplify right side
    8,454.66x = 41,326,678.31
  5. Step 5: Solve for x
    x = 41,326,678.31/8,454.66
  6. Step 6: Final answer
    x = 4,888.04

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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.