Home / 12,162.31-18,210.57-6,306.61

Finding the Fourth Proportional to 12,162.31, 18,210.57 and 6,306.61

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Solution

The fourth proportional to 12,162.31, 18,210.57 and 6,306.61 is: 9,442.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.31 : 18,210.57 = 6,306.61 : x
  2. Step 2: Convert to fraction form
    12,162.31/18,210.57 = 6,306.61/x
  3. Step 3: Cross multiply
    12,162.31x = 18,210.57 × 6,306.61
  4. Step 4: Simplify right side
    12,162.31x = 114,846,962.87
  5. Step 5: Solve for x
    x = 114,846,962.87/12,162.31
  6. Step 6: Final answer
    x = 9,442.86

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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.