Home / 12,142.08-18,217.46-4,751.83

Finding the Fourth Proportional to 12,142.08, 18,217.46 and 4,751.83

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Solution

The fourth proportional to 12,142.08, 18,217.46 and 4,751.83 is: 7,129.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142.08 : 18,217.46 = 4,751.83 : x
  2. Step 2: Convert to fraction form
    12,142.08/18,217.46 = 4,751.83/x
  3. Step 3: Cross multiply
    12,142.08x = 18,217.46 × 4,751.83
  4. Step 4: Simplify right side
    12,142.08x = 86,566,272.95
  5. Step 5: Solve for x
    x = 86,566,272.95/12,142.08
  6. Step 6: Final answer
    x = 7,129.44

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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.