Home / 12,411.58-18,618.60-4,091.68

Finding the Fourth Proportional to 12,411.58, 18,618.60 and 4,091.68

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Solution

The fourth proportional to 12,411.58, 18,618.60 and 4,091.68 is: 6,137.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,411.58 : 18,618.60 = 4,091.68 : x
  2. Step 2: Convert to fraction form
    12,411.58/18,618.60 = 4,091.68/x
  3. Step 3: Cross multiply
    12,411.58x = 18,618.60 × 4,091.68
  4. Step 4: Simplify right side
    12,411.58x = 76,181,353.25
  5. Step 5: Solve for x
    x = 76,181,353.25/12,411.58
  6. Step 6: Final answer
    x = 6,137.93

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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.