Home / 12,162.56-18,210.92-6,306.86

Finding the Fourth Proportional to 12,162.56, 18,210.92 and 6,306.86

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Solution

The fourth proportional to 12,162.56, 18,210.92 and 6,306.86 is: 9,443.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.56 : 18,210.92 = 6,306.86 : x
  2. Step 2: Convert to fraction form
    12,162.56/18,210.92 = 6,306.86/x
  3. Step 3: Cross multiply
    12,162.56x = 18,210.92 × 6,306.86
  4. Step 4: Simplify right side
    12,162.56x = 114,853,722.91
  5. Step 5: Solve for x
    x = 114,853,722.91/12,162.56
  6. Step 6: Final answer
    x = 9,443.22

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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.