Home / 14,268.32-21,402.72-3,879.80

Finding the Fourth Proportional to 14,268.32, 21,402.72 and 3,879.80

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Solution

The fourth proportional to 14,268.32, 21,402.72 and 3,879.80 is: 5,819.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,268.32 : 21,402.72 = 3,879.80 : x
  2. Step 2: Convert to fraction form
    14,268.32/21,402.72 = 3,879.80/x
  3. Step 3: Cross multiply
    14,268.32x = 21,402.72 × 3,879.80
  4. Step 4: Simplify right side
    14,268.32x = 83,038,273.06
  5. Step 5: Solve for x
    x = 83,038,273.06/14,268.32
  6. Step 6: Final answer
    x = 5,819.77

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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.