Home / 12,379.70-18,570.47-3,614.86

Finding the Fourth Proportional to 12,379.70, 18,570.47 and 3,614.86

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Solution

The fourth proportional to 12,379.70, 18,570.47 and 3,614.86 is: 5,422.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.70 : 18,570.47 = 3,614.86 : x
  2. Step 2: Convert to fraction form
    12,379.70/18,570.47 = 3,614.86/x
  3. Step 3: Cross multiply
    12,379.70x = 18,570.47 × 3,614.86
  4. Step 4: Simplify right side
    12,379.70x = 67,129,654.32
  5. Step 5: Solve for x
    x = 67,129,654.32/12,379.70
  6. Step 6: Final answer
    x = 5,422.56

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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.