Home / 14,178.04-21,249.78-8,243.80

Finding the Fourth Proportional to 14,178.04, 21,249.78 and 8,243.80

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Solution

The fourth proportional to 14,178.04, 21,249.78 and 8,243.80 is: 12,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.04 : 21,249.78 = 8,243.80 : x
  2. Step 2: Convert to fraction form
    14,178.04/21,249.78 = 8,243.80/x
  3. Step 3: Cross multiply
    14,178.04x = 21,249.78 × 8,243.80
  4. Step 4: Simplify right side
    14,178.04x = 175,178,936.36
  5. Step 5: Solve for x
    x = 175,178,936.36/14,178.04
  6. Step 6: Final answer
    x = 12,355.65

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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.