Home / 14,009.82-21,015.45-3,621.66

Finding the Fourth Proportional to 14,009.82, 21,015.45 and 3,621.66

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Solution

The fourth proportional to 14,009.82, 21,015.45 and 3,621.66 is: 5,432.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.82 : 21,015.45 = 3,621.66 : x
  2. Step 2: Convert to fraction form
    14,009.82/21,015.45 = 3,621.66/x
  3. Step 3: Cross multiply
    14,009.82x = 21,015.45 × 3,621.66
  4. Step 4: Simplify right side
    14,009.82x = 76,110,814.65
  5. Step 5: Solve for x
    x = 76,110,814.65/14,009.82
  6. Step 6: Final answer
    x = 5,432.68

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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.