Home / 14,388.18-21,582.50-6,991.11

Finding the Fourth Proportional to 14,388.18, 21,582.50 and 6,991.11

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Solution

The fourth proportional to 14,388.18, 21,582.50 and 6,991.11 is: 10,486.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.18 : 21,582.50 = 6,991.11 : x
  2. Step 2: Convert to fraction form
    14,388.18/21,582.50 = 6,991.11/x
  3. Step 3: Cross multiply
    14,388.18x = 21,582.50 × 6,991.11
  4. Step 4: Simplify right side
    14,388.18x = 150,885,635.94
  5. Step 5: Solve for x
    x = 150,885,635.94/14,388.18
  6. Step 6: Final answer
    x = 10,486.78

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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.