Home / 12,400.45-18,600.77-4,609.25

Finding the Fourth Proportional to 12,400.45, 18,600.77 and 4,609.25

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Solution

The fourth proportional to 12,400.45, 18,600.77 and 4,609.25 is: 6,913.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.45 : 18,600.77 = 4,609.25 : x
  2. Step 2: Convert to fraction form
    12,400.45/18,600.77 = 4,609.25/x
  3. Step 3: Cross multiply
    12,400.45x = 18,600.77 × 4,609.25
  4. Step 4: Simplify right side
    12,400.45x = 85,735,599.12
  5. Step 5: Solve for x
    x = 85,735,599.12/12,400.45
  6. Step 6: Final answer
    x = 6,913.91

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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.