Home / 14,179.86-21,237.39-6,789.51

Finding the Fourth Proportional to 14,179.86, 21,237.39 and 6,789.51

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Solution

The fourth proportional to 14,179.86, 21,237.39 and 6,789.51 is: 10,168.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.86 : 21,237.39 = 6,789.51 : x
  2. Step 2: Convert to fraction form
    14,179.86/21,237.39 = 6,789.51/x
  3. Step 3: Cross multiply
    14,179.86x = 21,237.39 × 6,789.51
  4. Step 4: Simplify right side
    14,179.86x = 144,191,471.78
  5. Step 5: Solve for x
    x = 144,191,471.78/14,179.86
  6. Step 6: Final answer
    x = 10,168.75

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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.