Home / 14,376.78-21,558.69-8,456.49

Finding the Fourth Proportional to 14,376.78, 21,558.69 and 8,456.49

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Solution

The fourth proportional to 14,376.78, 21,558.69 and 8,456.49 is: 12,680.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,376.78 : 21,558.69 = 8,456.49 : x
  2. Step 2: Convert to fraction form
    14,376.78/21,558.69 = 8,456.49/x
  3. Step 3: Cross multiply
    14,376.78x = 21,558.69 × 8,456.49
  4. Step 4: Simplify right side
    14,376.78x = 182,310,846.40
  5. Step 5: Solve for x
    x = 182,310,846.40/14,376.78
  6. Step 6: Final answer
    x = 12,680.92

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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.