Home / 12,007.36-18,000.08-4,211.92

Finding the Fourth Proportional to 12,007.36, 18,000.08 and 4,211.92

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Solution

The fourth proportional to 12,007.36, 18,000.08 and 4,211.92 is: 6,314.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,007.36 : 18,000.08 = 4,211.92 : x
  2. Step 2: Convert to fraction form
    12,007.36/18,000.08 = 4,211.92/x
  3. Step 3: Cross multiply
    12,007.36x = 18,000.08 × 4,211.92
  4. Step 4: Simplify right side
    12,007.36x = 75,814,896.95
  5. Step 5: Solve for x
    x = 75,814,896.95/12,007.36
  6. Step 6: Final answer
    x = 6,314.04

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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.