Home / 18,070.02-27,107.55-8,211.78

Finding the Fourth Proportional to 18,070.02, 27,107.55 and 8,211.78

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Solution

The fourth proportional to 18,070.02, 27,107.55 and 8,211.78 is: 12,318.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,070.02 : 27,107.55 = 8,211.78 : x
  2. Step 2: Convert to fraction form
    18,070.02/27,107.55 = 8,211.78/x
  3. Step 3: Cross multiply
    18,070.02x = 27,107.55 × 8,211.78
  4. Step 4: Simplify right side
    18,070.02x = 222,601,236.94
  5. Step 5: Solve for x
    x = 222,601,236.94/18,070.02
  6. Step 6: Final answer
    x = 12,318.82

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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.