Home / 12,167.78-18,226.28-6,306.62

Finding the Fourth Proportional to 12,167.78, 18,226.28 and 6,306.62

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Solution

The fourth proportional to 12,167.78, 18,226.28 and 6,306.62 is: 9,446.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.78 : 18,226.28 = 6,306.62 : x
  2. Step 2: Convert to fraction form
    12,167.78/18,226.28 = 6,306.62/x
  3. Step 3: Cross multiply
    12,167.78x = 18,226.28 × 6,306.62
  4. Step 4: Simplify right side
    12,167.78x = 114,946,146.61
  5. Step 5: Solve for x
    x = 114,946,146.61/12,167.78
  6. Step 6: Final answer
    x = 9,446.77

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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.