Home / 8,109.60-12,168.45-4,602.30

Finding the Fourth Proportional to 8,109.60, 12,168.45 and 4,602.30

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Solution

The fourth proportional to 8,109.60, 12,168.45 and 4,602.30 is: 6,905.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.60 : 12,168.45 = 4,602.30 : x
  2. Step 2: Convert to fraction form
    8,109.60/12,168.45 = 4,602.30/x
  3. Step 3: Cross multiply
    8,109.60x = 12,168.45 × 4,602.30
  4. Step 4: Simplify right side
    8,109.60x = 56,002,857.44
  5. Step 5: Solve for x
    x = 56,002,857.44/8,109.60
  6. Step 6: Final answer
    x = 6,905.75

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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.