Home / 14,118.96-21,180.72-4,759.81

Finding the Fourth Proportional to 14,118.96, 21,180.72 and 4,759.81

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Solution

The fourth proportional to 14,118.96, 21,180.72 and 4,759.81 is: 7,140.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.96 : 21,180.72 = 4,759.81 : x
  2. Step 2: Convert to fraction form
    14,118.96/21,180.72 = 4,759.81/x
  3. Step 3: Cross multiply
    14,118.96x = 21,180.72 × 4,759.81
  4. Step 4: Simplify right side
    14,118.96x = 100,816,202.86
  5. Step 5: Solve for x
    x = 100,816,202.86/14,118.96
  6. Step 6: Final answer
    x = 7,140.48

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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.