Home / 12,108.20-18,169.20-4,711.70

Finding the Fourth Proportional to 12,108.20, 18,169.20 and 4,711.70

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Solution

The fourth proportional to 12,108.20, 18,169.20 and 4,711.70 is: 7,070.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.20 : 18,169.20 = 4,711.70 : x
  2. Step 2: Convert to fraction form
    12,108.20/18,169.20 = 4,711.70/x
  3. Step 3: Cross multiply
    12,108.20x = 18,169.20 × 4,711.70
  4. Step 4: Simplify right side
    12,108.20x = 85,607,819.64
  5. Step 5: Solve for x
    x = 85,607,819.64/12,108.20
  6. Step 6: Final answer
    x = 7,070.24

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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.