Home / 14,579.70-21,869.55-8,674.80

Finding the Fourth Proportional to 14,579.70, 21,869.55 and 8,674.80

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Solution

The fourth proportional to 14,579.70, 21,869.55 and 8,674.80 is: 13,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579.70 : 21,869.55 = 8,674.80 : x
  2. Step 2: Convert to fraction form
    14,579.70/21,869.55 = 8,674.80/x
  3. Step 3: Cross multiply
    14,579.70x = 21,869.55 × 8,674.80
  4. Step 4: Simplify right side
    14,579.70x = 189,713,972.34
  5. Step 5: Solve for x
    x = 189,713,972.34/14,579.70
  6. Step 6: Final answer
    x = 13,012.20

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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.