Home / 12,001.79-18,005.58-4,505.42

Finding the Fourth Proportional to 12,001.79, 18,005.58 and 4,505.42

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Solution

The fourth proportional to 12,001.79, 18,005.58 and 4,505.42 is: 6,759.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,001.79 : 18,005.58 = 4,505.42 : x
  2. Step 2: Convert to fraction form
    12,001.79/18,005.58 = 4,505.42/x
  3. Step 3: Cross multiply
    12,001.79x = 18,005.58 × 4,505.42
  4. Step 4: Simplify right side
    12,001.79x = 81,122,610.22
  5. Step 5: Solve for x
    x = 81,122,610.22/12,001.79
  6. Step 6: Final answer
    x = 6,759.21

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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.