Home / 12,379.44-18,567.17-3,612.30

Finding the Fourth Proportional to 12,379.44, 18,567.17 and 3,612.30

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Solution

The fourth proportional to 12,379.44, 18,567.17 and 3,612.30 is: 5,417.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.44 : 18,567.17 = 3,612.30 : x
  2. Step 2: Convert to fraction form
    12,379.44/18,567.17 = 3,612.30/x
  3. Step 3: Cross multiply
    12,379.44x = 18,567.17 × 3,612.30
  4. Step 4: Simplify right side
    12,379.44x = 67,070,188.19
  5. Step 5: Solve for x
    x = 67,070,188.19/12,379.44
  6. Step 6: Final answer
    x = 5,417.87

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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.