Home / 12,730.45-19,091.12-4,408.23

Finding the Fourth Proportional to 12,730.45, 19,091.12 and 4,408.23

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Solution

The fourth proportional to 12,730.45, 19,091.12 and 4,408.23 is: 6,610.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730.45 : 19,091.12 = 4,408.23 : x
  2. Step 2: Convert to fraction form
    12,730.45/19,091.12 = 4,408.23/x
  3. Step 3: Cross multiply
    12,730.45x = 19,091.12 × 4,408.23
  4. Step 4: Simplify right side
    12,730.45x = 84,158,025.88
  5. Step 5: Solve for x
    x = 84,158,025.88/12,730.45
  6. Step 6: Final answer
    x = 6,610.77

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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.