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Finding the Fourth Proportional to 12,018.96, 18,007.80 and 10,801.56

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Solution

The fourth proportional to 12,018.96, 18,007.80 and 10,801.56 is: 16,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,018.96 : 18,007.80 = 10,801.56 : x
  2. Step 2: Convert to fraction form
    12,018.96/18,007.80 = 10,801.56/x
  3. Step 3: Cross multiply
    12,018.96x = 18,007.80 × 10,801.56
  4. Step 4: Simplify right side
    12,018.96x = 194,512,332.17
  5. Step 5: Solve for x
    x = 194,512,332.17/12,018.96
  6. Step 6: Final answer
    x = 16,183.79

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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.