Home / 12,323.76-18,485.64-3,438.73

Finding the Fourth Proportional to 12,323.76, 18,485.64 and 3,438.73

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Solution

The fourth proportional to 12,323.76, 18,485.64 and 3,438.73 is: 5,158.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,323.76 : 18,485.64 = 3,438.73 : x
  2. Step 2: Convert to fraction form
    12,323.76/18,485.64 = 3,438.73/x
  3. Step 3: Cross multiply
    12,323.76x = 18,485.64 × 3,438.73
  4. Step 4: Simplify right side
    12,323.76x = 63,567,124.84
  5. Step 5: Solve for x
    x = 63,567,124.84/12,323.76
  6. Step 6: Final answer
    x = 5,158.10

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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.