Home / 12,005.58-18,001.26-4,105.30

Finding the Fourth Proportional to 12,005.58, 18,001.26 and 4,105.30

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Solution

The fourth proportional to 12,005.58, 18,001.26 and 4,105.30 is: 6,155.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,005.58 : 18,001.26 = 4,105.30 : x
  2. Step 2: Convert to fraction form
    12,005.58/18,001.26 = 4,105.30/x
  3. Step 3: Cross multiply
    12,005.58x = 18,001.26 × 4,105.30
  4. Step 4: Simplify right side
    12,005.58x = 73,900,572.68
  5. Step 5: Solve for x
    x = 73,900,572.68/12,005.58
  6. Step 6: Final answer
    x = 6,155.52

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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.