Home / 18,114.73-27,142.07-12,823.60

Finding the Fourth Proportional to 18,114.73, 27,142.07 and 12,823.60

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Solution

The fourth proportional to 18,114.73, 27,142.07 and 12,823.60 is: 19,214.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,114.73 : 27,142.07 = 12,823.60 : x
  2. Step 2: Convert to fraction form
    18,114.73/27,142.07 = 12,823.60/x
  3. Step 3: Cross multiply
    18,114.73x = 27,142.07 × 12,823.60
  4. Step 4: Simplify right side
    18,114.73x = 348,059,048.85
  5. Step 5: Solve for x
    x = 348,059,048.85/18,114.73
  6. Step 6: Final answer
    x = 19,214.14

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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.