Home / 14,122.36-21,169.76-6,724.83

Finding the Fourth Proportional to 14,122.36, 21,169.76 and 6,724.83

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Solution

The fourth proportional to 14,122.36, 21,169.76 and 6,724.83 is: 10,080.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.36 : 21,169.76 = 6,724.83 : x
  2. Step 2: Convert to fraction form
    14,122.36/21,169.76 = 6,724.83/x
  3. Step 3: Cross multiply
    14,122.36x = 21,169.76 × 6,724.83
  4. Step 4: Simplify right side
    14,122.36x = 142,363,037.14
  5. Step 5: Solve for x
    x = 142,363,037.14/14,122.36
  6. Step 6: Final answer
    x = 10,080.68

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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.