Home / 14,011.92-21,015.90-4,150.80

Finding the Fourth Proportional to 14,011.92, 21,015.90 and 4,150.80

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Solution

The fourth proportional to 14,011.92, 21,015.90 and 4,150.80 is: 6,225.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,011.92 : 21,015.90 = 4,150.80 : x
  2. Step 2: Convert to fraction form
    14,011.92/21,015.90 = 4,150.80/x
  3. Step 3: Cross multiply
    14,011.92x = 21,015.90 × 4,150.80
  4. Step 4: Simplify right side
    14,011.92x = 87,232,797.72
  5. Step 5: Solve for x
    x = 87,232,797.72/14,011.92
  6. Step 6: Final answer
    x = 6,225.61

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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.