Home / 12,811.18-19,205.40-6,144.04

Finding the Fourth Proportional to 12,811.18, 19,205.40 and 6,144.04

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Solution

The fourth proportional to 12,811.18, 19,205.40 and 6,144.04 is: 9,210.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.18 : 19,205.40 = 6,144.04 : x
  2. Step 2: Convert to fraction form
    12,811.18/19,205.40 = 6,144.04/x
  3. Step 3: Cross multiply
    12,811.18x = 19,205.40 × 6,144.04
  4. Step 4: Simplify right side
    12,811.18x = 117,998,745.82
  5. Step 5: Solve for x
    x = 117,998,745.82/12,811.18
  6. Step 6: Final answer
    x = 9,210.61

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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.