Home / 12,422.67-18,635.86-4,103.57

Finding the Fourth Proportional to 12,422.67, 18,635.86 and 4,103.57

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Solution

The fourth proportional to 12,422.67, 18,635.86 and 4,103.57 is: 6,155.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.67 : 18,635.86 = 4,103.57 : x
  2. Step 2: Convert to fraction form
    12,422.67/18,635.86 = 4,103.57/x
  3. Step 3: Cross multiply
    12,422.67x = 18,635.86 × 4,103.57
  4. Step 4: Simplify right side
    12,422.67x = 76,473,442.32
  5. Step 5: Solve for x
    x = 76,473,442.32/12,422.67
  6. Step 6: Final answer
    x = 6,155.96

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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.