Home / 12,645.72-18,967.37-5,625.86

Finding the Fourth Proportional to 12,645.72, 18,967.37 and 5,625.86

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Solution

The fourth proportional to 12,645.72, 18,967.37 and 5,625.86 is: 8,438.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645.72 : 18,967.37 = 5,625.86 : x
  2. Step 2: Convert to fraction form
    12,645.72/18,967.37 = 5,625.86/x
  3. Step 3: Cross multiply
    12,645.72x = 18,967.37 × 5,625.86
  4. Step 4: Simplify right side
    12,645.72x = 106,707,645.22
  5. Step 5: Solve for x
    x = 106,707,645.22/12,645.72
  6. Step 6: Final answer
    x = 8,438.24

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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.