Home / 14,218.92-21,328.52-5,451.75

Finding the Fourth Proportional to 14,218.92, 21,328.52 and 5,451.75

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Solution

The fourth proportional to 14,218.92, 21,328.52 and 5,451.75 is: 8,177.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.92 : 21,328.52 = 5,451.75 : x
  2. Step 2: Convert to fraction form
    14,218.92/21,328.52 = 5,451.75/x
  3. Step 3: Cross multiply
    14,218.92x = 21,328.52 × 5,451.75
  4. Step 4: Simplify right side
    14,218.92x = 116,277,731.65
  5. Step 5: Solve for x
    x = 116,277,731.65/14,218.92
  6. Step 6: Final answer
    x = 8,177.68

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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.