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Finding the Fourth Proportional to 8,078.60, 11,148.98 and 4,542.04

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Solution

The fourth proportional to 8,078.60, 11,148.98 and 4,542.04 is: 6,268.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.60 : 11,148.98 = 4,542.04 : x
  2. Step 2: Convert to fraction form
    8,078.60/11,148.98 = 4,542.04/x
  3. Step 3: Cross multiply
    8,078.60x = 11,148.98 × 4,542.04
  4. Step 4: Simplify right side
    8,078.60x = 50,639,113.12
  5. Step 5: Solve for x
    x = 50,639,113.12/8,078.60
  6. Step 6: Final answer
    x = 6,268.30

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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.