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Finding the Fourth Proportional to 12,465.73, 18,698.60 and 3,700.57

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Solution

The fourth proportional to 12,465.73, 18,698.60 and 3,700.57 is: 5,550.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.73 : 18,698.60 = 3,700.57 : x
  2. Step 2: Convert to fraction form
    12,465.73/18,698.60 = 3,700.57/x
  3. Step 3: Cross multiply
    12,465.73x = 18,698.60 × 3,700.57
  4. Step 4: Simplify right side
    12,465.73x = 69,195,366.21
  5. Step 5: Solve for x
    x = 69,195,366.21/12,465.73
  6. Step 6: Final answer
    x = 5,550.85

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Similar ratio
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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.