Home / 12,098.85-18,143.94-4,306.11

Finding the Fourth Proportional to 12,098.85, 18,143.94 and 4,306.11

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Solution

The fourth proportional to 12,098.85, 18,143.94 and 4,306.11 is: 6,457.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,098.85 : 18,143.94 = 4,306.11 : x
  2. Step 2: Convert to fraction form
    12,098.85/18,143.94 = 4,306.11/x
  3. Step 3: Cross multiply
    12,098.85x = 18,143.94 × 4,306.11
  4. Step 4: Simplify right side
    12,098.85x = 78,129,801.47
  5. Step 5: Solve for x
    x = 78,129,801.47/12,098.85
  6. Step 6: Final answer
    x = 6,457.62

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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.