Home / 14,495.06-21,678.70-12,618.90

Finding the Fourth Proportional to 14,495.06, 21,678.70 and 12,618.90

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Solution

The fourth proportional to 14,495.06, 21,678.70 and 12,618.90 is: 18,872.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,495.06 : 21,678.70 = 12,618.90 : x
  2. Step 2: Convert to fraction form
    14,495.06/21,678.70 = 12,618.90/x
  3. Step 3: Cross multiply
    14,495.06x = 21,678.70 × 12,618.90
  4. Step 4: Simplify right side
    14,495.06x = 273,561,347.43
  5. Step 5: Solve for x
    x = 273,561,347.43/14,495.06
  6. Step 6: Final answer
    x = 18,872.73

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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.