Home / 12,606.08-18,920.78-6,370.48

Finding the Fourth Proportional to 12,606.08, 18,920.78 and 6,370.48

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Solution

The fourth proportional to 12,606.08, 18,920.78 and 6,370.48 is: 9,561.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606.08 : 18,920.78 = 6,370.48 : x
  2. Step 2: Convert to fraction form
    12,606.08/18,920.78 = 6,370.48/x
  3. Step 3: Cross multiply
    12,606.08x = 18,920.78 × 6,370.48
  4. Step 4: Simplify right side
    12,606.08x = 120,534,450.57
  5. Step 5: Solve for x
    x = 120,534,450.57/12,606.08
  6. Step 6: Final answer
    x = 9,561.61

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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.