Home / 18,070.30-27,083.58-8,199.64

Finding the Fourth Proportional to 18,070.30, 27,083.58 and 8,199.64

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Solution

The fourth proportional to 18,070.30, 27,083.58 and 8,199.64 is: 12,289.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,070.30 : 27,083.58 = 8,199.64 : x
  2. Step 2: Convert to fraction form
    18,070.30/27,083.58 = 8,199.64/x
  3. Step 3: Cross multiply
    18,070.30x = 27,083.58 × 8,199.64
  4. Step 4: Simplify right side
    18,070.30x = 222,075,605.91
  5. Step 5: Solve for x
    x = 222,075,605.91/18,070.30
  6. Step 6: Final answer
    x = 12,289.54

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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.