Home / 14,109.92-21,165.06-3,721.58

Finding the Fourth Proportional to 14,109.92, 21,165.06 and 3,721.58

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Solution

The fourth proportional to 14,109.92, 21,165.06 and 3,721.58 is: 5,582.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.92 : 21,165.06 = 3,721.58 : x
  2. Step 2: Convert to fraction form
    14,109.92/21,165.06 = 3,721.58/x
  3. Step 3: Cross multiply
    14,109.92x = 21,165.06 × 3,721.58
  4. Step 4: Simplify right side
    14,109.92x = 78,767,463.99
  5. Step 5: Solve for x
    x = 78,767,463.99/14,109.92
  6. Step 6: Final answer
    x = 5,582.42

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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.